
Math
Triangle ABC is circumscribed about circle O and D,E, and F are points of tangency. If AD= 5, EB= 5 and CF= 10, find the lengths of the sides of the triangle and show that the triangle is isosceles
asked by Brianne on May 12, 2011 
MATH HELP!!
Consider the three points A(2,3,1) B(1,2,3) C(7,4,6) a) Show that ABC is a right triangle. b) Calculate the area of this triangle. c) Find the coordinates of the center of the circle circumscribed about triangle ABC
asked by Christine on September 28, 2016 
GEOMETRY TANGENTS
TRIANGLE ACE IS A CIRCUMSCRIBED TRIANGLE. POINTS B,D AND F ARE POINTS OF TANGENCY . IF AC= 16 AND AE= 9 CM AND CE = 15 CM FIND AD, FE, AND CD. Thank you very mych
asked by Keeley on December 17, 2013 
GEOMETRY TANGENTS
Triangle ACE is a circumscribed triangle. Points B, D and F are the points of tangency. If AC= 16 and AE is 9 cm and CE = 15 cm . Find AD, FE and CD HELP PLEASE VERY URGENT
asked by Keeley on December 17, 2013 
Math HELP
#1 find the value of x if RS = 4(x3)+6 and RT = 5(2x6). x= 12 x= 6 x= 4*** x= 3 #2 which of the following statements are always true? Choose all that apply. If the circumcenter of a triangle lies on the triangle, then the triangle is a right triangle.
asked by Tony on October 16, 2018 
geomery
1. Triangle ABC has a 63.0degree 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
asked by Esi on April 12, 2010 
geometry
1. Triangle ABC has a 63.0degree 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
asked by Esi on April 12, 2010 
geometry
Open that link please please help me with my assignments 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4, and 5 respectively. find the area of triangle aef 2. equialateral triangle abc has an area of square root of 3 and
asked by BARBIE LEE on November 7, 2013 
geometry
1. The radius of the circumscribed circle of the triangle ABC is 15 cm. Given that B is a 49degree angle, find the length of side AC. continuation  The radius of the circumscribed circle of the triangle ABC is r cm. Given that B is a betadegree angle,
asked by sally K on April 12, 2010 
Trignometry pls help
1. The radius of the circumscribed circle of the triangle ABC is 15 cm. Given that B is a 49degree angle, find the length of side AC. 2. The radius of the circumscribed circle of the triangle ABC is r cm. Given that B is a âdegree angle, find the length
asked by Sally K on April 11, 2010 
GEOMETRY URGENT PLEASE
(imageshack)(.)us(/)photo (/) myimages (/)42(/)2vja. jpg(/) Open that link please , just delete the parentheses please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, triangle abe, triangle
asked by BARBIE LEE on November 9, 2013 
GEOMETRY
Here are the figures. file:///C:/Users/ALIZAJOY/Pictures/Untitled.png Open that link please please help me with my assignments 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4, and 5 respectively. find the area of triangle
asked by Barbie Lee on November 6, 2013 
geometry PLEASE
imageshack(.)(us)/photo/myimages/42/2vja.jpg/ Open that link please , just delete the parentheses please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4,
asked by BARBIE LEE on November 10, 2013 
Math
The radius of the circumscribed circle of the triangle abc is 15cm. given that B is a 49degree angle; find the length of the side AC
asked by Crystal Johnson on September 7, 2010 
geometry
(imageshack)123 (.)us(/)photo 123 (/) myimages 123 (/)42(/) 123 2vja. jpg(/)123 Open that link please , just delete the parentheses and spaces and 123's please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the
asked by Barbie lee on November 9, 2013 
Ms. Sue Please help!!!
Ahhh... thank you "A square and an equilateral triangle have the same perimeter. Let A be the area of the circle circumscribed about the square and B be the area of the circle circumscribed about the triangle. Find A/B." It's a tough one.
asked by Sheenybeany on June 10, 2014 
geometry
The vertices of ABC are A(8, 0), B(0, 0), and C(0, 4). If a circle is circumscribed around ABC, where would the center of the circle be located?
asked by asher on January 2, 2011 
geometry
The vertices of ABC are A(8, 0), B(0, 0), and C(0, 4). If a circle is circumscribed around ABC, where would the center of the circle be located?
asked by roddy on January 3, 2011 
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;
asked by Dezzy on April 29, 2011 
circle geometry triangles
how do u construct a circle that is circumscribed of a triangle? how do u constuct a circle that is inscribed in a triangle? i am a bit confused and I have finals next week!
asked by Skylar on December 11, 2010 
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?
asked by John on May 27, 2013 
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?
asked by andrew on May 28, 2013 
maths
Let ABC be a triangle in the plane. Find circles C0;C1; : : : ;C6 such that Cj has exactly j points in common with the boundary of ABC (this \boundary" consists of the line segments AB, BC, CA). Is it possible to nd a circle C7 with 7 points in common with
asked by jenny on October 12, 2012 
Math
Circle C has radius 4 inches. Circle D had radius 9 inches. These two circles are connected. Point A,B,and E are points of tangency. Find AB. From point C to point D(which is the radius of circle C plus the raduis of circle D) it is 13 inches. From point C
asked by Greg on April 29, 2011 
Circumcenter of Triangle in circle
Equilateral triangle ABC and a circle with center O are constructed such that BC is a chord of the circle and point A is the circumcenter of BCO in its interior. If the area of circle with center O is 48pi, then what is the area of triangle ABC? How to do
asked by Knights on March 29, 2013 
maths
Triangle ABC has area [ABC]=468. D,E and F are the midpoints of BC,CA and AB, respectively. Points P,Q and R are defined such that P is the incenter of AEF, Q is the incenter of BFD, and R is the incenter of CDE. What is [DREPFQ]? Details and assumptions
asked by hemant on May 22, 2013 
maths
Let ABC be a triangle in the plane. Find circles C0;C1; : : : ;C6 such that Cj has exactly j points in common with the boundary of ABC (this \boundary" consists of the line segments AB, BC, CA). Is it possible to find a circle C7 with 7 points in common
asked by jenny on October 10, 2012 
math
A circle is inscribed in triangle ABC with sides a, b, c. Tangents to the circle parallel to the sides of the triangle are constructed. Each of these tangents cuts off a triangle from ∆ABC. In each of these triangles, a circle is inscribed. Find the sum
asked by DAS on October 12, 2016 
Math
Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine the
asked by Bob on June 14, 2013 
Mathematics
Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine the
asked by Steve on June 16, 2013 
Math
1. the points given are two of the 3 vertices of a right triangle. Which could be the third vertex of the triangle given 2 points are (4,5) & (3,2) ? 2.) A circle with center O and radius r is intersected at 2 distinct points by line l. Which is true? a.
asked by Sophia on November 9, 2015 
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
asked by Jayden on October 19, 2013 
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?
asked by andrew on May 28, 2013 
maths
In TRIANGLE ABC points P,Q,R arethe points lies inside triangle in such a way that Ap= PR, BQ=QP &QR=RC n area of triangle PQR =100 then find the Area of ABC
asked by sanjay on November 13, 2015 
maths
In TRIANGLE ABC points P,Q,R arethe points lies inside triangle in such a way that Ap= PR, BQ=QP &QR=RC n area of triangle PQR =100 then find the Area of ABC
asked by sanjay on November 11, 2015 
Geometry
Let ABC be any triangle. Equilateral triangles BCX, ACY, and BAZ are constructed such that none of these triangles overlaps triangle ABC. a) Draw a triangle ABC and then sketch the remainder of the figure. It will help if (triangle) ABC is not isosceles
asked by G on March 19, 2015 
Maths
In triangle ABC ,D and E are the mid points of BC and AC respectively prove that the area of triangle ABC is 4 times than triangle ABE
asked by K.Teja Prabhu on January 22, 2017 
geometry
Theres a circle with an equilateral triangle in the middle. The traingles edges all touch the circle. The radius of the circle is 8 meters. How do I find the area of the triangle? Sorry The triangles edges don't touch the circle, the points do. Did you
asked by Emily on April 4, 2007 
10th grade
how do you draw a circle with the points of A,B,and D that lies on the point of tangency C
asked by mary on January 4, 2009 
math
A circle is circumscribed about an equilateral triangle with side lengths of 9 units each. What is the area of the circle, in square units? Express your answer in terms of pi.
asked by InfaRed on November 16, 2016 
math
Let P and Q be the points on the sides AB and BC of a triangle ABC respectively such that BP = 3PA and QC = 2BQ. Let K be the midpoint of the segment PQ. Prove that the area of the triangle AKC is equal to 11S/24, where S is the area of the triangle ABC.
asked by mathsen on August 7, 2010 
Geometry
A circle has a radius of 6 inches. The circumscribed equilateral triangle will have an area of:?
asked by Kaley on May 17, 2010 
mathematics
if a circle has a radius of 6 inches,what will the area of the circumscribed equilateral triangle be?
asked by kimber on May 17, 2010 
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??
asked by Sammy on December 19, 2013 
math
if you have the triangle ABC with the points A(47,100) B(1273,203) and C(971,732) how would you find the center and the radius of the incircle of triangle ABC?
asked by kim on April 13, 2009 
math
if you have the triangle ABC with the points A(47,100) B(1273,203) and C(971,732) how would you find the center point and the radius of the incircle of triangle ABC?
asked by kim on April 15, 2009 
Maths
Let ABC be a triangle. Locate the point O inside the triangle ABC such that for points L, M and N lying on its sides AB, BC and CA respectively, triangles BOL, COM and AON have the same area, where LO and BC, OM and AC, NO and AB must be parallel
asked by Anonymous on August 11, 2015 
calculus
Find the smallest possible area of an isosceles triangle that is circumscribed about a circle of radius r
asked by tony on December 4, 2008 
geometry
An Equilateral triangle (ABC) is inscribed inside a circle. The side lengths of the triangle are 8 cm. What is the radius of the circle?
asked by Katy on March 29, 2011 
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,
asked by Morgan on March 1, 2013 
geomerty
find the area of a circle circumscribed about a equalateral triangle whose side is 18 inches long
asked by buzz on May 18, 2013 
geometry
Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long.
asked by cat on January 22, 2012 
heeeeeeelp geometry
In a triangle ABC, BK is an angle bisector. A circle with radius 5/3 passes through the vertex B, intersects AB at a point L, and is tangent to AC at K. It is known that the length of AC is 3√3, and the ratio of the lengths AK to BL is 6:5. The area
asked by andrew on June 1, 2013 
Math (Pre Cal)
Hi, I am studying for a precalculus quiz and I do not understand this hw problem: "The tangent line to a circle may be defined as the point that intersects a circle in a single point... If the equation of the circle is x^2+y^2=r^2 and the equation of the
asked by Dealie on August 28, 2010 
Geometry
Within an orthonormal system consider points A(1,4) B(5,1) C(4,8) (a)Calculate the angle ABC (b)Show that 3x+4y19=0 is an equation for line L which passes through A and B (c)Find a vector equation for line L (d)(i)give an equation for the circle with the
asked by Anonymous on May 4, 2008 
maths
DRAW LOCUS OF POINT SO THAT IT IS EQUIDISTANT FROM BC & CA . ... constructed such that none of these triangles overlaps triangle ABC. a) Draw a triangle ABC and then sketch ... 16) AB = 3.2cm BC = 8.4cm The area of the triangle ABC is 10cm². ... CONSTRUCT
asked by okafor azubuike on April 16, 2016 
algebra
Triangle ABC is reflected over the xaxis. Triangle ABC has points A (10, 2), B (9, 5), and C (6, 4). What is the B' coordinate?
asked by jnjlk on December 1, 2015 
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
asked by denise on April 30, 2013 
maths
In a triangle ABC,D and E are the mid points of BC and AD respectively.prove that the area of triangle ABC is four times to the area of triangle ABE
asked by Mahaboob Basha on January 24, 2017 
geometry
i am lost on this one TAKE Three points K,L,M on sides BC,CA,AB of the triangle ABC. Prove that at least one of the triangles AML,BKM,CLK has area less than or equal to 1/4 area of triangle ABC
asked by saurabh shado on August 6, 2007 
Math
You can use triangle congruence theorems to prove relationships among tangents and secants. Task 1 Four tangents are drawn from E to two concentric circles. A, B, C, and D are the points of tangency. Name as many pairs of congruent triangles as possible
asked by Stacy.M on May 11, 2018 
Math
∆ABC has the points A(1, 7), B(2, 2), and C(4, 2) as its vertices. The measure of the longest side of ∆ABC is units. ∆ABC is triangle. If ∆ABD is formed with the point D(1, 2) as its third vertex, then ∆ABD is triangle. The length of side AD is
asked by Lola on June 17, 2016 
math
Plot the points A(2,2), B(4,6),C(10,2)Notice that these points are vertices of a right triangle (the angle is 90 degrees). Find the area of the triangle ABC:
asked by katrina on February 3, 2011 
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
asked by anum on March 23, 2010 
mathsareas
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]
asked by anoynomous on March 15, 2013 
yet another geometry question
Points D, E and F are the midpoints of the sides of triangle ABC. If AD=6, CF=4 and the perimeter of triangle ABC = 30, then find BE. If D is between A&B, E is between B&C and F is between C&A, then the perimeter is 6+6+4+4 + (twice length of BE)= 30 Solve
asked by mike on May 7, 2007 
math
Triangle ABC undergoes a series of transformations to result in triangle DEF. Is triangle DEF congruent to triangle ABC ? Is it Congruent or Not congruent? 1.)) Triangle ABC is translated 3 units up and 5 units right, and then dilated by a scale factor of
asked by Brooklyn Squad on April 25, 2018 
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
asked by Phyllis on November 24, 2010 
Math
This question makes reference to an orthonormal basis (i,j), and an origin O. 1. Consider the triangle ABC, with vertices A(0,2), B(9,1), C(1,11). Find: a) a cartesian equation of the altitude from C; b) a cartesian equation of the circle which has BC as
asked by Anonymous on February 27, 2008 
Mathematics
In right angled triangle ABC,angle B=90degree and AB=√34unit.The coordinates of points B,C are(4,2)&(1,y).if ar(ABC)=17units then find the value of y
asked by Saayra on April 2, 2017 
maths
ABC is an isosceles triangle inscribed in a circle. If AB and AC is 2.5cm and BC is 14cm find the radius of the circle
asked by Anonymous on March 21, 2015 
Maths
Equilateral triangle ABC is inscribed in circle O, whose radius is 4. Altitude BD is extended until it intersects the circle at E. What is the length of DE? a) √3 b) 2√3 c) 2 d) 4√3
asked by Mithun raj on December 6, 2017 
math
ABC is an isosceles triangle inscribed in a circle. If AB and AC equal to 2.5cm and BC is 14cm find the radius of the circle
asked by Anonymous on March 21, 2015 
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 ∠BCA=39∘ and ∠EBA=2∠DAB, what is the measure of ∠ABC (in degrees)?
asked by Anonymous...urgent! on February 28, 2013 
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 ∠BCA=39∘ and ∠EBA=2∠DAB, what is the measure of ∠ABC (in degrees)?
asked by BATMAN on February 26, 2013 
math
ABC is a triangle inscribed in a circle centre O..angle ACB =40¡ã and line And =xcm.calculate the radius of the circle.
asked by joy on January 8, 2015 
Math
The radius of the inscribed circle is 5. If the length of the hypotenuse of the right triangle ABC is 19, what is the perimeter of the triangle?
asked by Judy on May 9, 2014 
College Geometry
In this assignment, you examine a process that links polygons and circles. You will reach some quantitative conclusions about their respective areas and the relationship between the two. As you know, a regular polygon has sides of equal length and angles
asked by Lisa on September 3, 2013 
maths need help
find the radius of a circle that is the tangent to all the three side of the triangle ABC given that the triangle hve lenght 7,24 and 25 help?
asked by marvin on September 15, 2016 
geometry(triangle)
Triangle ABC is a right triangle with ∠ABC=90∘. P is a point within triangle ABC such that ∠APB=∠BPC=∠CPA=120∘. If PA=15 and PB=6, what is the value of PC?
asked by can u do it???? on February 25, 2013 
math
In isosceles right triangle ABC, point D is on hypotenuse BC such that AD is an altitude of triangle ABC and DC = 5. What is the area of triangle ABC?
asked by charles on July 7, 2016 
math
In an isosceles triangle ABC in which AB=AC=6cm is inscribed in a circle of radius 9cm .find the area of triangle
asked by silent suman on March 3, 2016 
Geometry
A circle is drawn inside a triangle ABC to touch the sides BC,CA and AB at P,Q and R respectively.if A=56° and B=68°, find the angles of triangle PQR
asked by Gbotty on February 23, 2017 
Math please help urgent
In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from
asked by Lily on December 7, 2013 
Math
In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from
asked by Lily on December 7, 2013 
Math
In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from
asked by Lily on December 7, 2013 
Help triangle angles!
Points D, E, and F are the midpoints of sides BC, CA, and AB of ABC, respectively, and CZ is an altitude of the triangle. If
asked by Knights on December 19, 2012 
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
asked by Julie on October 20, 2009 
geometry
Triangle ABC is a 45°45°90° triangle inscribed in a sphere such that B is the center of the sphere, and A and C are points on the sphere. Given the hypotenuse of ABC is 32 units, what is the surface area of the sphere?
asked by Anonymous on May 10, 2011 
Precalculus
Points A, B, and C are on a circle such that angle ABC=45 degrees, AB=6, and AC=8. Find the area of the circle.
asked by Katie on April 9, 2016 
MATH
.In
asked by Anonymous on April 2, 2015 
sanket study centre
In triangle ABC p,q,r such that they lie interior of triang ABC and AP=AR and all the three sides of triangle PQR are scalan if area of triangle PQR is 100 then find area of triangle ABC
asked by sanjay on November 11, 2015 
precalc
Points A, B, and C are on the circumference of a circle with radius 2 such that angle BAC = 45 degrees and angle ACB = 60 degrees. Find the area of triangle ABC.
asked by katie on July 15, 2016 
geometry
if home plate is 60.5 feet from the pitcher's mound, find the distance from the pitcher's mound of a major league baseball field to the center of a circumscribed circle that touches home plate, 1st base and second base. Find the exact, simplified length of
asked by susan on October 16, 2011 
Math! Please check!
When constructing the circumcenter and circumscribed circle of a triangle, you need to find the intersection of all three of which type of line? A medians B perpendicular bisectors C altitudes D angle bisectors My choice is B.
asked by Skye on October 9, 2014 
mathsconstructions
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
asked by Anonymous on February 27, 2013 
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''
asked by kayla on January 23, 2013 
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''
asked by Cali on January 26, 2017 
Hard Geometry Problem
Hi guys. I need a lot of help on this. "Equilateral triangle ABC has centroid G. Triangle A'B'C' is the image of triangle ABC upon a dilation with center G and scale factor 2/3. Let K be the area of the region that is within both triangles. Find K/[ABC]."
asked by Sheenybeany on August 1, 2014 
Math
The coordinates of the vertices of triangle ABC are A (5,1), B (2,3) and C (4,7). The triangle is reflected over the line x=2. What is the sum of the xcoordinates of points A', B' and C'(the points after the reflection)?
asked by Sam on December 19, 2007
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