Thursday
April 24, 2014

Search: Assume ABC DEF..

Number of results: 10,195

math
angle ABC and DEF are supplementary angles. the measure of DEF is 20 degrees less than 3 times the amount of ABC. what are ABC and DEF.
Thursday, January 24, 2013 at 7:49pm by hunter

geometry
DEF and ABC are complementary angles and ABC is nine times as large as DEF. Determine the measure of each angle.
Wednesday, June 27, 2012 at 8:54am by angela

GEOMETRY
If ABC ~ DEF and the scale factor from ABC to DEF is 1/6, what are the lengths of DE,EF , and DF, respectively?
Wednesday, February 26, 2014 at 11:54am by QUILO

geometry
Triangle ABC is similar to triangle DEF. The sides of ABC are 5,8 and 11. What is the length of the shorttest side of DEF if its perimeter is 60?
Tuesday, June 18, 2013 at 9:01pm by mily

Precalculus
In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special cases in which...
Monday, February 24, 2014 at 5:18pm by John

geometry
<DEF and <ABC are supplementary angles and <DEF is seven times as large as <ABC. Determine the measures of each angle. Students must show all work step by step to receive full credit.
Thursday, March 10, 2011 at 4:47pm by Terri Search

algebra
Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. the answer should be __________m^2 triangle abc has a 12m. triangle def has 12m and 18m.
Saturday, March 9, 2013 at 10:26pm by sally

Trigonometry/Geometry
In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special cases in which...
Tuesday, November 19, 2013 at 1:47pm by Sam

geometry
triangle abc is similar to def, the lengths of the sides of triangle abc is 5,8,11. what is the length of the shortest side of triangle def if its perimeter is 60?
Thursday, February 28, 2013 at 6:22pm by c

Math
If triangle ABC is similar to triangle DEF and the perimeter of ABC is 4 times greater than the perimeter of DEF , what is the relationship between the areas of the triangles?
Thursday, July 12, 2012 at 11:02pm by DAN

geometry
In similar triangles ABC and DEF, corresponding sides AB and DE equal 15 and 12, respectively. If the perimeter of triangle ABC=40, what is the perimeter of triangle DEF
Tuesday, September 28, 2010 at 8:16pm by Saw Phone Thet

algebra
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth.
Friday, March 1, 2013 at 12:59pm by sally

geomerty
The following triangles, Ä ABC and Ä DEF, are congruent. abc 67.38degree 12cm lenght 22.62degree b5cm,l,13cm Find the lengths of all missing sides and measures of all angles for both triangles. Include correct units with each of your answers. First triangle: Second triangle: ...
Wednesday, May 11, 2011 at 1:11am by kozy

Trigonometry/Geometry - Law of sines and cosines
In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special cases in which...
Thursday, November 21, 2013 at 4:03pm by Sam

geometry
if <def < abc then <def <abc
Wednesday, October 14, 2009 at 9:14pm by vanessa

Math Geometry
Geometry Question: Prove the symmetric Property for congruence of triangles. Given: ∆ABC≅ ∆DEF Prove: ∆DEF≅ ∆ABC
Wednesday, May 18, 2011 at 8:27am by Reigel

geometry
Suppose right triangle ABC has one acute angle 47º. Suppose also that right triangle DEF has an acute angle 43º. How are triangles ABC and DEF related?
Tuesday, September 20, 2011 at 11:40pm by Blanca

algebra
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth. ab=4ft bc=6ft ac=5ft de=6ft ef= 9ft there is no feet given for df Please can anyone help me solve this with steps I don't understand how to do this. Thanking you in ...
Friday, March 1, 2013 at 1:11pm by sally

math
The base of triangle ABC is one half the altitude.The altitude of triangle DEF is one half its base. If both triangles are equal in area, what is the ratio of the altitude of triangle ABC to the altitude of triangle DEF ? a. 1:4 b. 1:2 c. 1:1 d. 2:1 e. 4:1 please answer and ...
Saturday, April 19, 2014 at 1:18pm by thomas

geometry
"Triangle DEF is similar to triangle ABC, and the length of side DE is 6 cm. The length of side AB is 2 cm. If the area of triangle ABC is 5 square cm, what is the area of triangle DEF?
Wednesday, July 6, 2011 at 6:16pm by Anonymous

geometry
ABC is congruent to DEF AB = 11, BC = 14, CA = 20, FD = 4x - 12 Find x
Sunday, November 20, 2011 at 6:01pm by T

Math: Finding m<A
ABC~DEF m<B = 25', m<D = 45', m<E = 25' How do find m<A?
Friday, March 29, 2013 at 2:41pm by Michelle

math
Triangles ABC and DEF are similar. The similarity ratio of to is , AB = 40, BC = 25, and AC = 35. What is the perimeter of ?
Wednesday, May 22, 2013 at 6:55pm by angie

Math
Find the missing sides of the similar triangles ABC and DEF. AC=2 AB=5 CB=? DF=4 FE=8 DE=?
Wednesday, November 13, 2013 at 6:51pm by Heather

Math (Geometry)
The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest possible length for one of the sides of ...
Tuesday, August 7, 2012 at 3:11pm by ANONYMOUS

UPDATE to Ms Sue
If JKL is similiar to DEF and JKl has sides that are 11 times greater than those of DEF what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The perimeter of JKL is 11 times...
Wednesday, June 13, 2012 at 5:00pm by Katie

Geometry
Given: Triangle ABC ~ Triangle DEF, m<A = 50o, m<D = 2x + 5y, m<F = 5x + y, and m<B = 102 - x. What is the measurement of <F?
Monday, March 14, 2011 at 11:44pm by mic

Geoometry Help: Find EF
ABC~DEF AB = 36, BC = 24, DE = 48 m<B = 110', m<E = 110' EF = ? I think it's 68. Yes? Or is something else?
Friday, March 29, 2013 at 2:37pm by Michelle

maths
D,E,F are the midpoints of a triangle ABC then what is the area of triangle DEF?
Monday, March 26, 2012 at 11:15am by help me out it's urgent

geometry
describe the 2 transformations, the first followed by the second that combined will transform triangle ABC and triangle DEF. 23) A(-3,3), B(-3,1), C(0,1) D(6,6), E(6,2), F(0,2) 24)A(6,0), B(9,6), C(12,6) D(0,3), E(1,5), F(2,5)
Monday, December 19, 2011 at 9:37pm by Anonymous

Geometry
If ∆ ABC ~ ∆ DEF, BC = 12 cm, EF = 10 cm, and AC = 18 cm, find DF.
Tuesday, January 11, 2011 at 8:49pm by Dave

Math
If ∆ ABC ~ ∆ DEF, BC = 12 cm, EF = 10 cm, and AC = 18 cm, find DF.
Wednesday, January 12, 2011 at 12:02pm by James

English
What could I use as a memory clue (or picture) for the following words? Evicted: Def. To force out. Requisitioned: Def. Demand, or urgently ask for something for military needs.
Saturday, August 23, 2008 at 1:23pm by Tommy

English
What could I use as a memory clue (or picture) for the following words? Requisitioned: Def. Demand, or urgently ask for something for military needs. Derogatory: Def. To make a remark that belittles someone else
Sunday, August 24, 2008 at 11:44am by Tommy

math
Triangle DEF with vertices D(2,5), E(1,-6), and F(-5,3) is translated 3 units right and 2 units down. Find the coordiantes of DEF.
Thursday, November 13, 2008 at 8:34pm by Sha

math
Right triangle DEF has sides that measure x, x, and x squared for the some value of x. What is the area of triangle DEF to the nearest 0.1 square unit?
Sunday, April 20, 2014 at 10:27pm by Melissa

math (need help badly)
the vertices of triangle DEF are D(5,12)and E(2,7) and F(8,4) Triangle DEF undergoes an enlargement with the centre ,O, and scale factors k.Its image is D`E`F` where D(5,12)arrow D`(7.5,18) a)How do i detremine the value of k
Friday, May 23, 2008 at 9:57am by rita

Geometry
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?
Tuesday, March 26, 2013 at 11:31pm by Dan

maths
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?
Saturday, March 30, 2013 at 8:57am by rohit

maths
ABC is an acute triangle with ∠BCA=35∘. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of ∠ABC(in degrees)?
Saturday, March 30, 2013 at 10:37am by stranger

math
Write a sequence of transformations that maps triangle ABC onto triangle A''B''C''. --------------------------------------… A in ABC is 1,9, B in ABC is 3,12, and C in ABC is 4,4. A'' in A''B''C'' is 3,-3, B'' in A''B''C'' is 5,-6, and C'' in A''B''C'' is 6,2.
Wednesday, January 23, 2013 at 4:11pm by kayla

TO BOBPURSLEY
def of average velocity = t^-1 (x - x0) (average velocity = t^-1(x-x0))t=(avearge velocity)t + x0= x - x0 + x0 = x = (average velocity)t + x0 x = (average velocity)t + x0 def of average velocity were costant acceleration is assumed = 2^-1(v0 + v) plug into x = (average ...
Thursday, June 18, 2009 at 9:40pm by TO ]BOBPURSLEY

Physics
def of average velocity = t^-1 (x - x0) (average velocity = t^-1(x-x0))t=(avearge velocity)t + x0= x - x0 + x0 = x = (average velocity)t + x0 x = (average velocity)t + x0 def of average velocity were costant acceleration is assumed = 2^-1(v0 + v) plug into x = (average ...
Friday, June 19, 2009 at 8:23am by Physics

math, functions
stefan has set up a right triangle EFG on the side of a river such that FG measures 20m and angle DEF measures 60 degrees. EG bisects angle DEF. determine the width of DG.
Sunday, November 20, 2011 at 12:50pm by yess

def integrals
find value of def integral with a=-2 and b=2sqrt(3) for integral i get 1/15 *((4+x^2)^(3/2)) (-8+3x^2) for value i get [1536- 64sqrt(2)]/15 but its' wrong. help please
Saturday, May 25, 2013 at 9:49pm by Mikey

Geometry
if m<GEF = 2x + 10, m<DEF = 5x- 10, and m<GED = 70, find m<GEF and m<DEF
Sunday, March 2, 2014 at 5:39pm by Kylee

Math
if m<GEF = 2x + 10, m<DEF = 5x- 10, and m<GED = 70, find m<GEF and m<DEF
Monday, March 3, 2014 at 10:58am by Kylee

MATH
what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The perimeter of JKL is 11 times greater then DEF. D. The perimeter of JKL is 121 times greater that DEF.
Wednesday, June 13, 2012 at 4:16pm by Katie

Update
what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The perimeter of JKL is 11 times greater then DEF. D. The perimeter of JKL is 121 times greater that DEF.
Wednesday, June 13, 2012 at 4:44pm by Katie

Geometry
in triangle ABC, BD bisects <ABC, <ABD = 4x + 6 and m<DBC = 5x -5. find the m<abc
Tuesday, January 1, 2013 at 5:47pm by Arooj

Math
If triangle ABC is similar to triangle DEF and the scale factor is 1:2 correspondingly, what is the measure of angle D is the measure of angle A is 45 degrees? Explain how you determined the measure of angle D.
Thursday, January 24, 2013 at 4:52pm by Lalala

Geometry
Angle DEF is similar to Angle HJK and the scale factor of angle DEF to anle HJK IS 5/2. If EF =15 FIND JK Here is what I came up with Am I correct 5/2 = EF/JK 5/2 =15/JK 5(JK)=30 JK=30/5 JK=6 Thanks much
Wednesday, June 13, 2007 at 10:28am by DANIELLE

Geometry-PLEASE CHECK ANSWERS!
In isosceles triangle DEF, DE=DF. Which of the following is true? 1) <D is congruent to <E 2) <F is congruent to <E 3) <D is congruent to <F 4) <D is congruent to <E which is congruent to <F Is the answer (3)? In triangle ABC, if line AB is congruent...
Tuesday, February 23, 2010 at 7:33pm by Laurie

geometry
Triangle ABC is congruent to triangle DEF. If the length of AB is 12 feet and the length of AC is 10 feet. Find the length of DE. can someone please help me on this question please and thank youu :)
Saturday, September 3, 2011 at 10:56pm by Alexis

6th grade vocab
What does the word "predominant" mean? Oh and please don't give me a website with some big def. I am in 6th grade so I won't understand if the def. is big and long. It also helps if you use it in a sentence . . . just saying. :-D Thanks so much!
Monday, April 13, 2009 at 5:45pm by Noelle

math
Point A and B of a triangle ABC are at (-1,1) and (3,9), respectively; while point C is on the parabola y=x2. Find coordinate of C so that the area of ABC is minimum, and calculate the largest are of ABC.
Friday, August 10, 2012 at 5:46am by rolan

simple GEOMETRY!!
In triangle ABC, ∠ABC=30∘,∠ACB=60∘. D is a point in triangle ABC such that DB and DC bisect angles ABC and ACB respectively. What is the measure (in degrees) of ∠BDC?
Tuesday, March 19, 2013 at 7:07am by please..anyone help!!

Geometry
ABC is a right angled triangle with ∠ABC=90∘ and side lengths AB=24 and BC=7. A semicircle is inscribed in ABC, such that the diameter is on AC and it is tangent to AB and BC. If the radius of the semicircle is an improper fraction of the form a/b, where a and b ...
Monday, March 18, 2013 at 5:20am by Stranger

Maths
ABC is a right angled triangle with ∠ABC=90∘ and side lengths AB=24 and BC=7. A semicircle is inscribed in ABC, such that the diameter is on AC and it is tangent to AB and BC. If the radius of the semicircle is an improper fraction of the form a/b, where a and b ...
Tuesday, March 19, 2013 at 1:46am by Stranger

Math
120 people are given a survey about which television shows they watch. ABC=55 NBC=30 CBS=40 ABC and CBS=10 ABC and NBC=12 NBC and CBS and ABC=5 It wants you to solve for the remaining regions of the circle (mainly what NBC+CBS equal). I know you have to make a venn diagram but...
Wednesday, April 10, 2013 at 9:53pm by Ali

Geometry
The scale factor of triangle DEF to triangle HJK is 5/2. If EF =15 find JK EF : JK = 5 : 2 15 : JK = 5 : 2 15 * 2 = JK * 5 30 = 5(JK) 5(JK) / 5 = 30 / 5 JK = 6 Am I CORRECT ON THIS ONE? Looks like EF and JK are corresponding sides of similar triangles. Each side of DEF is 2.5 ...
Monday, June 18, 2007 at 1:46pm by DANIELLE

Geometry..
Given: A(3,-1), B(5,2), C(-2,0), P(-3,4), Q(-5,-3), R(-6,2). Prove: angles ABC and RPQ are congruent by completing the paragraph proof. AB=RP=13, BC=(?)=53, and CA=QR=26. So segment AB is congruent to (?), segments BC and PQ are congruent and segment CA is congruent to segment...
Tuesday, July 26, 2011 at 8:59pm by Wendell

prefixes please help thax:]
these words wont show the right def. when i type it in the dictonary search bar **but i do no u ladys can not do my work for 4 sure But really need help badly i have 11-30 to do and its 9:30 please help anyone thax:] *prefixes* ante arch bi demi equi extra non omin ortho semi...
Thursday, October 2, 2008 at 9:27pm by Niqua

accounting
ABC Company uses cash basis accounting for its records. During 2010, ABC collected $400,000 from its customers, made payments of $300,000 to its suppliers for inventory, and paid $140,000 for operating costs. ABC wants to prepare accrual basis financial statements. In ...
Monday, September 9, 2013 at 1:25am by Anonymous

Math
ABC has vertices A(0, 6), B(4, 6), and C(1, 3). Sketch a graph of ABC and use it to find the orthocenter of ABC. Then list the steps you took to find the orthocenter, including any necessary points or slopes you had to derive.
Friday, December 7, 2012 at 4:11pm by Bob

geometry
can one tell if two triangles are congruent if they are given only the angles and all of them are congruent to one another? (Example below) triangle ABC and triangle DEF with angle A congruent to angle D, angle B congruent to angle E, and angle C congruent to angle F
Monday, October 6, 2008 at 9:07pm by Casey

Geometry PLEASE HELP ME
ABC has vertices A(0, 6), B(4, 6), and C(1, 3). Sketch a graph of ABC and use it to find the orthocenter of ABC. Then list the steps you took to find the orthocenter, including any necessary points or slopes you had to derive.
Tuesday, December 11, 2012 at 2:11pm by Steven

Geometry
Triangle DEF ~ Triangle HJK, and the scale factor of Triangle DEF to Triangle HJK is 5/2. If EF=15, find JK
Wednesday, June 16, 2010 at 10:09am by April

heeeeeeeeeeelp math
Triangle ABC has an obtuse angle at B, base BC has length equal to 30 and height equal to 24. D is a point on the line segment BC and E is a point on AC such that DE∥AB. F is a point on AB such that FD∥AC. As D varies within line segment BC, what is the maximum ...
Thursday, June 6, 2013 at 12:28am by clavin

heeeeeeeeeeelp math
Triangle ABC has an obtuse angle at B, base BC has length equal to 30 and height equal to 24. D is a point on the line segment BC and E is a point on AC such that DE∥AB. F is a point on AB such that FD∥AC. As D varies within line segment BC, what is the maximum ...
Thursday, June 6, 2013 at 9:20am by clavin

HELP!!!!RIGHT NOW!!!!
Which set of side lengths shows similar triangles? (1 points) A) Triangle ABC : 40, 20, 50; Triangle XYZ: 10, 4, 8 B) Triangle ABC : 30, 20, 60; Triangle XYZ: 40, 60, 90 C) Triangle ABC : 110, 80, 60; Triangle XYZ: 6, 8, 5.5 D) Triangle ABC : 32, 20, 32; Triangle XYZ: 30, 16, 16
Friday, April 29, 2011 at 1:42pm by Dezzy

geometry
draw a triangle abc with abc ab =4.5 ,angle abc=35,angle acb=65
Monday, November 26, 2012 at 8:38am by mudit

geometry!!!!!!
ABC is an isosceles triangle with AB = BC. The circumcircle of ABC has radius 8. Given further that AC is a diameter of the circumcircle, what is the area of triangle ABC?
Tuesday, February 12, 2013 at 12:03pm by please help me out!!! please

Math
In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The lines AD,BE,CF are concurrent at I, the incenter of triangle ABC. If ∠BAC=92∘, what is the measure (in degrees) of ∠EIF?
Monday, May 27, 2013 at 2:53am by John

heeeeeeeeeeeeeeeeeeeelp maths
In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The lines AD,BE,CF are concurrent at I, the incenter of triangle ABC. If ∠BAC=92∘, what is the measure (in degrees) of ∠EIF?
Tuesday, May 28, 2013 at 4:52am by andrew

geomery
1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about the three ratios a/...
Monday, April 12, 2010 at 12:04am by Esi

geometry
1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about the three ratios a/...
Monday, April 12, 2010 at 6:40pm by Esi

9th grade
given that a(-1,8) ,b(2,4) and if the line y=4 is the axis of symmetry of triangle abc find c.show that triangle abc is an isosceles triangle,calculate the area of triangle abc,calculate the perpendicular distance from a to bc
Tuesday, March 23, 2010 at 8:35am by anum

maths
Triangle ABC has an obtuse angle at B, base BC has length equal to 30 and height equal to 24. (This height is taken with respect to base BC). D is a point on the line segment BC and E is a point on AC such that DE∥AB. F is a point on AB such that FD∥AC. As D varies...
Saturday, June 8, 2013 at 4:15am by keshav

Math
Which set of side lengths shows similar triangles? Triangle ABC : 40, 20, 50; Triangle XYZ: 10, 12.5, 10 Triangle ABC : 30, 20, 30; Triangle XYZ: 40, 30, 20 Triangle ABC : 110, 80, 60; Triangle XYZ: 12, 16, 22 Triangle ABC : 32, 20, 32; Triangle XYZ: 40, 26, 26
Friday, March 1, 2013 at 4:54pm by Morgan

help math
In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The linesAD,BE,CF are concurrent at I,the incenter of triangle ABC. If Angle BAC=90, what is the measure (in degrees) of Angle EIF?
Tuesday, May 28, 2013 at 4:43am by andrew

pls help w/t math ?
in a right triangle ABC, if ab is 14 and bc is 12 wut is bd? there is a pic of a large trangle abc and in it is a line drawn down angle c making it line cd. angle acd then becomes a right trangle as well. i tried working = proportions and pyth thm but i dont seem to be getting...
Monday, July 16, 2007 at 1:53am by shawna

maths-constructions
Construct a rhombus ABCD in which AB= 6 cm and angle ABC= 60degree. Divide it into two triangle ABC and ADC. Construct a triangle AB 'C ' similar to triangle ABC with scale factor 2/3. Draw a line segment C 'D ' parallel to CD, where D ' lies on AD. Is AB 'C 'D ' a rhombus
Wednesday, February 27, 2013 at 1:35pm by Anonymous

math help mepls
Triangle ABC has an obtuse angle at B, base BC has length equal to 30 and height equal to 24. (This height is taken with respect to base BC). D is a point on the line segment BC and E is a point on AC such that DE∥AB. F is a point on AB such that FD∥AC. As D varies...
Friday, June 7, 2013 at 5:47am by clavin

business
how to do Legal Research for this Issue Employment Discrimination 2. Textbook reference: Chapters 5, 35 3. Possible search terms: ethics, employment discrimination, Title VII, past discrimination 4. Here is the situation: ABC Corporation decides to respond to what it sees as a...
Monday, November 28, 2011 at 5:49am by bb

Geometry
Triangles ABC and DEF are congruent. The length of the line segment AB is 5 yards, the length of the line segment BC is 7 yards, and the length of the line segment CA is 9 yards.
Monday, January 23, 2012 at 4:06pm by dawn

Geometry
Can some one please check these for me.Thanks Angle DEF is similar to Angle HJK and the scale factor of angle DEF to anle HJK IS 5/2. If EF =15 FIND JK Here is what I came up with Am I correct 5/2 = EF/JK 5/2 =15/JK 5(JK)=30 JK=30/5 JK=6 Given: ABCD is a parallelogram; <1 ...
Thursday, June 14, 2007 at 11:30am by DANIELLE

geometry
X lies in the interior of <abc Name the two angles contained in <abc
Tuesday, February 9, 2010 at 10:54am by megan

math
In equilateral triangle ABC, AB=3x and BC= 2x=12. Find the numerical value of the perimeter of ABC.
Wednesday, September 29, 2010 at 5:24pm by Troy

Math
In triangle ABC <C=90 degrees, AB=12m and AC=8m. Calculate the measure of <ABC.
Monday, January 7, 2013 at 8:39pm by Anonymous

maths
In triangle abc, angle abc= ×deg,bc=× and ab=(×+10) ;find the value of x
Saturday, April 19, 2014 at 8:09am by johan

Maths - Vectors
The position vectors a,b,c of the points A,B,C relative to the origin O are ai, bj and ck respectively.Find: 1) a vector equation for the line l throught O which is normal to the plane ABC. 2) a vector equation of the plane ABC The answers should be: 1) r=t(bc i +ac j +ab k) ...
Monday, February 2, 2009 at 10:32am by Claire

GEOMATRY
CONSTRUCT ANGLE ABC WHERE AB=AC=10cm AND BC=9cm .MEASURE AND WRITE DOWN THE SIZE OF ABC
Saturday, September 10, 2011 at 7:37am by ZAHRA ALI

Math
The letters A,B,and C represent three different digits. Determine the number ABC if ABC + ACB ---------- BCA
Monday, February 14, 2011 at 11:19am by Devin

geometry
Algebra BD bisects <ABC. Solve for x and find m<ABC. m<ABD = 4x - 16, m<CBD = 2x + 6 Please teach me how to work this.
Friday, September 14, 2012 at 10:48am by Jane

Math
ABC is a triangle with ∠BAC=60∘. It has an incircle Γ, which is tangential to BC at D. It is given that BD=3 and DC=4. What is the value of [ABC]^2?
Monday, June 17, 2013 at 11:44pm by Bob

Geometry
ABC is a triangle with area equal to 20 . The incircle of triangle ABC has radius equal to 2 and the circumcircle of triangle ABC has radius equal to 6 . If sinA+sinB+sinC=a/b , where a and b are coprime positive integers, what is the value of a+b ?
Monday, March 11, 2013 at 2:01pm by Tony

Math (Trigonometry)
In triangle ABC, we have AB = 16, BC = 29 and CA = √1097. What is the integer that is closest to 100 sin∠ABC?
Tuesday, May 7, 2013 at 2:42am by Tom

geometry
The medial triangle of a triangle ABC is the triangle whose vertices are located at the midpoints of the sides AB, AC, and BC of triangle ABC. From an arbitrary point O that is not a vertex of triangle ABC, you may take it as a given fact that the location of the centroid of ...
Tuesday, April 30, 2013 at 10:21am by denise

math
in triangle ABC, AB = BC and ABC = 42. find ACB
Sunday, March 24, 2013 at 6:46pm by angela

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