Monday
April 21, 2014

Search: Prove that angle ABC is a isosceles triangle,if the altitude AD BISECTS THE BASE BC

Number of results: 21,199

Geomentry
prove the statement Angle ABD is a right angle and Angle CBE is a Right Angle and prove Angle ABC is Congruent to Angle DBE
Sunday, October 27, 2013 at 11:43am by Andy

maths
In triangle ABC angle B > angle C if AM is the bisector of angle BAC and AN perpendicular BC. prove that angle MAN =1/2(angle B - angle C)
Tuesday, August 23, 2011 at 9:28am by Anonymous

Maths
X and Y are points on the sides BC and AC of a triangle ABC respectively such that angle AXC = angle BYC and BX = XY. Prove that AX bisects the angle BAC. I believe the first step is to prove ABXY is a cyclic quadrilateral. Unfortunately, I dont know how!!!
Sunday, July 20, 2008 at 8:51pm by Bobby

algebra
ABC and DCB are right angles .That A and D respectively.And AC=DB. Prove that angle ABC is equal to angle DCB?
Wednesday, August 15, 2012 at 12:11pm by TUHITUHI

math
in triangle abc ad is bisector of angle a and angle b is twice of angle c prove that angle bac is equal to 72
Friday, May 11, 2012 at 11:16am by priyanka

math
In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A
Friday, July 27, 2012 at 10:42am by sunny

geometry
In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A
Friday, July 27, 2012 at 8:32pm by sunny

Math
angle ABC ~= angle ACB BD perpendicular AC The sum fo the three angles in any triangle is 180 degree. Prove: mangle CBD = 1/2 mangle BAC
Sunday, October 14, 2012 at 12:23pm by Tom

Geometry
Given: angle ABD is a right angle , angle CBE is a right angle. Prove: angle ABC is congruent angle DBE
Thursday, September 29, 2011 at 6:21pm by Sam

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

geometry
obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 of angle CBD is 4 more than angle BAD. Find the measure of angle ABC.
Tuesday, November 30, 2010 at 6:12pm by suzy

Math
From the vertex A of a right angled triangle ABC, (A being the right angle) AD is drawn perpendicular to BC. How do I prove that the three triangles ABD, ADC, and ABC are similar? Thank you!
Thursday, July 8, 2010 at 12:35am by Mintz

algebra - eh?
Excuse me? You say ABC and DCB are right angles . . . <mumble mumble> Prove that angle ABC is equal to angle DCB Duh. They are both right angles. Care to modify your data and question?
Wednesday, August 15, 2012 at 12:11pm by Steve

maths
in triangle abc angle b = 2angle c.d is a point ob bc such that ad bisects angle bac and ab = cd.prove that angle bac = 72
Wednesday, August 15, 2012 at 2:35am by rajat garg

Geometry
Angle ABC and ange DBE are vertical angles,the measure of angle ABC =3x+20, and the measure or angle DBE =4x-10. Write and solve an equation to find the measure of angle ABC and the measure of angle DBEin
Sunday, September 2, 2012 at 10:31pm by Amber

Geometry
Angle ABC and ange DBE are vertical angles,the measure of angle ABC =3x+20, and the measure or angle DBE =4x-10. Write and solve an equation to find the measure of angle ABC and the measure of angle DBEin
Sunday, September 2, 2012 at 10:32pm by Amber

Geometry
Given: obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 angle BDC and angle CBD is 4 more than angle BAD. What is the measure of angle ABC?
Sunday, December 12, 2010 at 11:31pm by Kathy

geometry
Angle ABC and angle EBF are a pair verical angles. The measurement of angle ABC = 3X + 8 and the measurement of angle EBF = 2X + 48. What are the measurements of angle ABC and angle EBF
Thursday, August 11, 2011 at 7:23pm by amy

Math(Geometry)
In the diagram below(no diagram but details will be provided), right triangle ABC and line BD is an altitude to side line AC. * Prove that (AB)^2=(AC)(AD) -When you label the triangle B should be were the right angle is C should be at the top of the triangle and it should be ...
Wednesday, November 24, 2010 at 8:17pm by Phyllis

Geometry
Line BD bisects angle ABC. Angle ABC= 9x. Angle ABD= 4x+13. Finds angle DBC
Monday, September 23, 2013 at 12:47pm by Taylor

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

Math
In the triangle ABC, angle ABC is x, angle BCA is x+40, and angle CAB is 2x. What is the measure of the largest angle (in degrees) ?
Wednesday, November 10, 2010 at 5:16pm by sadf

MATH_URGENT
Point X is on side \overline{AC} of \triangle ABC such that \angle AXB =\angle ABX, and \angle ABC - \angle ACB = 39 degrees. Find \angle XBC in degrees.
Thursday, March 13, 2014 at 11:09pm by RhUaNg

Geometry
ABC is an acute angle triangle with points D and E on BC and AC, respectively such that BE and AD are altitudes. AD and BE intersect at H. If \angle BCA = 39 ^\circ and \angle EBA = 2 \angle DAB , what is the measure of \angle ABC (in degrees)?
Thursday, February 28, 2013 at 12:14am by John

Geometry
ABC is an acute angle triangle with points D and E on BC and AC, respectively such that BE and AD are altitudes. AD and BE intersect at H. If \angle BCA = 39 ^\circ and \angle EBA = 2 \angle DAB , what is the measure of \angle ABC(in degrees)?
Friday, March 1, 2013 at 6:42pm by John

geometry
measure of angle ABC=4x-12 measure of angle ABX=24 BX bisects ABC solve for X and find the measure of angle ABC **page 48 # 11 of prentice hall,california geometry**
Tuesday, September 27, 2011 at 3:28pm by Terry

geometry
measure of angle ABC=4x-12 measure of angle ABX=24 BX bisects ABC solve for X and find the measure of angle ABC **page 48 # 11 of prentice hall,california geometry**
Tuesday, September 27, 2011 at 3:29pm by Terry

Johan
Given angle 1 = (x + 7)degree, angle 2 = *(2x -3)degree, angle ABC = (x 2nd power) degree, angle D = (5x - 4)degree. Show that angle ABC congruent to angle D I can't seem to solve this?
Tuesday, September 4, 2012 at 1:11am by Sia

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

geometry
Is this statement always true, sometimes true, or never true? give angle ABC and DEF, if angle A = angle D, angle B = angle E, and angle C = angle F, then angle ABC is congruent to angle DEF
Sunday, May 30, 2010 at 8:58pm by Anonymous

Geometry
Given angle 1 = (x + 7)degree, angle 2 = *(2x -3)degree, angle ABC = (x 2nd power) degree, angle D = (5x - 4)degree. Show that angle ABC congruent to angle D
Thursday, May 1, 2008 at 6:56pm by Ash

Geometry- how to write proof
ABC is a right triangle. Angle C is 90 degree. Altitude CD is drawn to hypotenuse AB. Prove AB/BC = BC/BD and AB/AC = AC/AD This is a theorem. How do I prove it? Thanks. Dont you have similar triangles? You can show this by looking at the angles involved...remember the ...
Friday, February 23, 2007 at 1:19pm by Jen

geometry
Find m<ABC if line BD is an angle bisector of angle ABC and m<ABC = 4x - 5 degrees and angle b is x + 6 degrees
Sunday, October 10, 2010 at 7:34pm by Sharon

geometry
if segment bd bisects angle abc. the measure of angle abc=7x. the measure of angle abd=3x+25 find the measure of angle dbc
Sunday, October 9, 2011 at 5:23pm by Anonymous

geometry
if segment bd bisects angle abc. the measure of angle abc=7x. the measure of angle abd=3x+25 find the measure of angle dbc
Sunday, October 9, 2011 at 5:44pm by Anonymous

geometry
if segment bd bisects angle abc. the measure of angle abc=7x. the measure of angle abd=3x+25 find the measure of angle dbc
Sunday, October 9, 2011 at 6:47pm by Anonymous

geometry
Indirect proof given triangle ABC,<B is an obtuse angle prove there can only be one obtuse angle in triangle.
Friday, December 17, 2010 at 3:17pm by Alfa

Geometry
Given quadrilateral ABCD,ABllDC, diagonal AC. we can prove that angle 1= angle 2, but cannot prove angle 3=angle4 Why is this. What must be true about the sides of the Quadrilateral in order to prove that angle 3 is congruent to angle 4? My answer: The sides of the ...
Monday, February 26, 2007 at 9:23pm by DANIELLE

Geometry
Given quadrilateral ABCD,ABllDC, diagonal AC. we can prove that angle 1= angle 2, but cannot prove angle 3=angle4 Why is this. What must be true about the sides of the Quadrilateral in order to prove that angle 3 is congruent to angle 4? My answer: The sides of the ...
Sunday, March 4, 2007 at 8:10pm by DANIELLE

Geometry
Given: in triangle ABC, angle B= 120 degrees Prove: angle A does not= 60 degrees Plan: use indirect proof Assume temporarily that Measure angle A = 60. Then measure angle C=60, and measure angles A+B+C=180= 60+B+60=180. Therefore the temporary assumption that measure angle A=...
Tuesday, June 12, 2007 at 1:14pm by DANIELLE

GEOMETRY (Angles) PLEASE
in triangle ABC, angle b is 5 more than twice angle A and angle C iss 35 less than three times angle A. Find the angles of triangle ABC
Saturday, August 24, 2013 at 2:09am by yuri

geometry
8. iN triangle ABC, a point D is on AC so that AB=AD. ANGLE ABC - ANGLE ACB = 30. IND ANGLE CBD. PLEASE TELL ME WHAT TO DO. I BEG YOU. PLEASE
Tuesday, October 22, 2013 at 5:53am by nicole

MATHS
In triangle ABC, BC is produced to D. If angle ACD = 110 degree and angle ABC = 70 degree. Find angle BAC. Give reason.
Monday, March 12, 2012 at 4:27am by Job

GEOMETRY TRIANGLE
IN TRIANGLE ABC, A POINT D IS ON AC SO THAT AB=BD. ANGLE ABC - ANGLE ACB = 30. FIND ANGLE CBD HELP NNNNNDEEEEEDDDD PLEASE
Thursday, October 24, 2013 at 8:30am by Barbie Lee

math
Rays AB and BC are perpendicular. Point D lies in the interior of angle ABC. If Angle ABD = 4r-7 and angle DCB = 8r+1, find angles ABC and DCB.
Saturday, September 8, 2012 at 10:26pm by Sarah

geometry
find the length of ab & bc of a triangle abc having given the length of ac = 28inch, angle abc = 90, angle bac =30,, angle acb = 60
Wednesday, January 4, 2012 at 12:48am by Anonymous

trigo
In a right tringle ,angle ABC has a value of 37 degree while its opposite side is equal to 5,where angle c=90 degree Find A.)Remaining sides of the triangle B.)Angle ABC using any trigonometry Functions
Tuesday, July 12, 2011 at 4:23am by William john

geomerty
The following triangles, ABC and 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

math
point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. How do you calculate the value of k?? thanks for the help
Wednesday, October 13, 2010 at 1:10pm by liam

geometry
in triangle ABC extend BC to form the exterior angle at C, call that x We know angle A + Angle B + angle C = 180 But angle C + x = 180, (by supplementary angle theorem) so angle A + angle B + angle C = x + angle C subtract angle C from both sides angle A + angle B = x, the ...
Monday, June 22, 2009 at 2:43pm by Reiny

10th grade Geometry
How do you do this proof? "In circle O, line segment ABC and line segment ADE are secants. Prove that angle ADC is congruent to angle ABE. This is the diagram: img523.imageshack.us/my.php?image=diagram3.jpg
Monday, February 23, 2009 at 11:25pm by Tommy

math
point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. And the negative reciprocals is 2. How do you calculate the value of k?? thanks for the help
Wednesday, October 13, 2010 at 1:48pm by liam

math
point A(-1,-2) B(7,2) C(k,4) K is a constant. The vertices of ABC. Angle ABC is a right angle. Ive worked out the gradient of AB to be 1/2. And the negative reciprocals is -2. How do you calculate the value of k?? thanks for the help
Wednesday, October 13, 2010 at 1:49pm by liam

Trig
a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC? angle A=60, angle B=30, angle C=90 the triangle has a height of 10
Friday, February 3, 2012 at 12:18pm by BreAnne

Trigonometry
ABC is a right triangle with AB = 2, BC = 3\sqrt{5}, AC = 7 and \angle ABC = 90^\circ. If \cos \angle BAC = \frac{a}{b}, where a and b are coprime positive integers, what is the value of a + b?
Wednesday, March 27, 2013 at 11:55pm by Dan

Geometry
The altitude to the hypotenuse of a right triangle ABC divides the hypotenuse into 12mm and 16mm segments. Find the lengths of each of the following. A. The altitude to the hypotenuse B. The shorter leg of angle ABC C. The longer leg of angle ABC
Monday, September 30, 2013 at 10:51pm by George

Genius Math
Triangle ABC has AC=BC, angle ACB=96 degrees. D is a point in ABC such that angle DAB=18 degrees and angleDBA=30 degrees. What is the measure in degrees of angle ACD? I got 42 degrees!
Tuesday, December 24, 2013 at 1:49am by Anonymous

geometry
TWO COLUMN TRIANGLE PROOF Given: line AB is parallel to line DE, and line AD bisects line BE Prove: triangle ABC is congruent to triangle DEC by using the ASA (angle-side-angle) postulate
Sunday, November 9, 2008 at 11:08pm by tori

Geometry
Given: segment BD bisects angle ABC; AB=BC. Prove: triangle ABD congruent to triangle CBD
Tuesday, March 12, 2013 at 8:12pm by Constance

math
In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
Friday, July 27, 2012 at 10:59am by sunny

geometry
In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
Friday, July 27, 2012 at 8:31pm by sunny

Math
trapezium ABCD, , with diagonal connecting A and C, angle ABC is 86, angle ADC is y, angle dac is 66 and angle bac is x, no angle given for bcd or bca or acd. find x and y why is the fourth angle 114?
Monday, February 3, 2014 at 5:27pm by Evie

math
let AD = DC = x then AB = 2x in triangle ABC , angle B = angle C = in triangle BCD , angle C = angle BDC = 2 angles of one are equal to 2 angles of the other, so they are similar then: 2/x = 2x/2 2x^2 = 4 x^2=2 x=√2 So triangle ABC has equal sides of 2√2 and a ...
Monday, November 5, 2012 at 5:22am by Reiny

geometry
I need to figure out this proof, the figure is two triangles forming a rhombus. Given: segment BD is the angle bisector of triangle ABC and triangle ADC Prove: Triangle ABD is congruent to Triangle CBD So far I have segment BD is the angle bisector of triangle ABC and triangle...
Sunday, December 15, 2013 at 10:51am by cassidy

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

Math
a parabola whose rootsare at A(-3,0) and B(6,0) has a y-intercept at point C(0,p),p<0, such that angle ABC is a right angle. if the equation of the parabola is y=ax^2+bx=c, compute the value of (abc)^2
Sunday, May 29, 2011 at 12:46am by Stan

geometry
Triangle ABC has the following angle measures. Angle A = 44. Angle B = 4x. Angle C = 2x + 16. Find the measure of angle C.
Thursday, December 16, 2010 at 12:14pm by jess

Geometry
Given: segment AB is congruent to segment BC; angle 1 is congruent to angle 2 Prove: triangle ABC is congruent to triangle DEC
Monday, March 11, 2013 at 9:35pm by Constance

maths
ABC is a triangle BD & CE are altitudes drawn from the vertex B & C. Prove that ABC is an isoceles triangle
Wednesday, June 19, 2013 at 4:55am by karan

Trigonometry
in triangle abc, if sin c= (sin a + sin b )/ ( cos a + cos b ) prove that triangle abc is a right-angle triangle.
Sunday, July 13, 2008 at 3:16am by Tommy

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

Algebra 2 review
In triangle ABC, the ratio of the measure of angle A to the measure of angle B is 3:5. The measure of angle C is 20 more than the sum of the measure of angles A and B. What is the measure of each angle in triangle ABC?
Thursday, April 28, 2011 at 12:40pm by Beth

maths-Circles
O is the centre of a circle which has two chords BA and BC with point B on the circumference of the circle.If OB bisects angle ABC,prove that AB=AC
Monday, February 25, 2013 at 7:08am by Anonymous

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
triangles ABC and XYZ are congruent. Angle A is one half the size of angle B. Angle Y is 90 degrees. Angle C and angle Z are both 45 degrees. what is the measure of angle A.
Tuesday, March 1, 2011 at 5:51pm by Nana

math
if triangles abc and xyz are congruent. angle a is one half the size of angle b. angle y is 90 degrees. angle c and angle z are both 45 degrees. what is the measure of angle a?
Monday, March 26, 2012 at 9:07pm by steve

geometry
the vertices of triangle ABC are A(1,7)B(9,3)C(3,1) a.prove that the triangle is a right triangle b.which angle is the right angle? c.which side is the hypotnuse? d.what are the coordinatesof the midpoint of the hypotnuse? e.what is the equation of the median from the vertex ...
Friday, February 20, 2009 at 11:52am by melissa

Geometry
Can I get help starting this exercise:- Let triangle ABC be such that AB is not congruent to AC. Let D be the point of intersection of the bisector of angle A and the perpendicular bisector of side BC. Let E, F, and G be the feet of the perpendicular dropped from D to line AB...
Tuesday, October 20, 2009 at 8:58am by Julie

math -trig
nice question! lets do some geometric construction. Draw the original triangle, label it ABC with a=10, b=7 and c=8 draw the larger triangle DEF with a 1 unit space between the sides, so that angle A = angle D etc. let's concentrate at the angle B corner. Extend AB to meet EF ...
Tuesday, June 9, 2009 at 8:19pm by Reiny

Geometry
If angle ABD is 79 what is angle ABC and DBC DBC (5x+4) ABC (8x-3)?
Wednesday, August 28, 2013 at 1:19pm by Darko

Geometry
Please answer at least one . PLEASE 1. Triangle XYZ has a right angle at Y. V,W are on XZ such that XV=XY. WZ=YZ, find ANGLE VYW . 2. STUVWXYZ is a regular octagon. Find SW/ TZ. 3. The interior angles of a convex polygon form an arithmetic progression with a common difference ...
Saturday, October 19, 2013 at 9:13am by Jayden

math
Let ABC be a triangle such that angle ACB = 135 degrees. Prove that AB^2 = AC^2 + BC^2 + 2 x AC x BC.
Saturday, August 7, 2010 at 1:37am by mathsen

maths
point D,E lie on side BC,CA of triangle ABC resp.lines AD,BE,DE bisect angle(BAC,ABC,ADC}resp.Then angle BAC=____radians
Friday, May 17, 2013 at 2:38am by ramesh reddy

Precalculus
1. Prove csc(symbol for angle) tan(symbol for angle) = sec(symbol for angle) 2. Prove cosx+sinxtanx=secx
Monday, November 22, 2010 at 10:19am by Anonymous

Geometry.
prove that the distance between any two points inside triangle abc is not greater than half the perimeter of triangle abc my teacher said to try doing this proof by contradiction. can someone please help??
Thursday, December 19, 2013 at 6:59pm by Sammy

math
in triangle abc angle b is 5x angle a and c is 16 degree less than 4 times angle a the size of angle a b c in decimal is
Wednesday, March 23, 2011 at 2:25pm by elaine

Geometry
If [angle]D is a right angle and lines PN, FG, and BD are parallel to each other, prove [angle]SPN ~ [angle]SFG ~ [angle]SBD
Thursday, June 10, 2010 at 4:17pm by Shadi

Geometry / Proofs
Given: Triangle ABC with AD bisecting angle BAC, and AE is congruent to ED (both line segments). Prove: AE/AC = BD/BC. Statements Reasons
Tuesday, August 27, 2013 at 3:24pm by Lisa

Algebra, HELP! PLEASE!
In triangle ABC, angle B is four times as large as angle A. The measure of angle C is 12∘ more than that of angle A. Find the measures of the angles.
Saturday, September 7, 2013 at 12:02am by Kate

algebra
In any triange, the sum of the measures of the angles is 180degrees. In triangle ABC, angle A is four times as large as angle B. Angle C measures 20degrees less than angle B. Find the measure of each angle.
Sunday, October 19, 2008 at 11:27pm by misha

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 Proofs (w/Pic)
Well, if it is a rhombus we know all the sides are of equal length AND opposite sides are parallel. All we have to prove is that the corner angles are equal CBE=BCE given so CBE=BCE=ADE=DAE intersect parallel lines BE = CE isosceles AD = BC rhombus so triangle AED congruent ...
Saturday, January 18, 2014 at 5:50pm by Damon

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

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

maths-areas
in triangle ABC P, Q AND R ARE the mid points of side AB, BC, CA.prove that area of parallelogram APQR=( 1/2)* area of triangle[ABC]
Friday, March 15, 2013 at 1:55pm by anoynomous

Geometry
answer to a two column proof problem such as Given: angle 1 and angle 5 are congruent and angle 5 is congruent to angle 4 prove angle 3 is comgruent to angle 1
Wednesday, October 26, 2011 at 2:45pm by mea

geometry proofs
given ABC is a triangle. Ad is the altitude to BC. Ad biscects angle BAC. Prove: Ad is the median to BC
Tuesday, December 14, 2010 at 12:25am by SKipper

math
in triangle ABC, line BF is angle bisector of angle ABC, line AE, line BF and line CDare medians, and P is the centriod. find Xif DP = 4x-3 and CP=30
Sunday, December 16, 2012 at 4:33pm by Can't

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

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