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Mathematics 19 Online
OpenStudy (anonymous):

geometry help!! Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY I I AC BY = 3, YC = 2

OpenStudy (anonymous):

OpenStudy (anonymous):

All right, so because XY || AC we know that the triangle is congruent. That implies that if we increase the size of one of the sides by 3/2, all sides will become 3/2 times larger. So if we let the area of triangle ABC be given by (2G*2h)/2=2Gh, the area of triangle XBY is given by (3G*3h)/2=4.5Gh. Then the ratio of the triangles is given by XBY/ABC = 4.5h / 2h = 2.25

OpenStudy (anonymous):

if is asking me for the ratio then 2.25 is wrong i tried it before, i also input 9/4 and all others that had to do with 9/4

OpenStudy (anonymous):

9/25

OpenStudy (anonymous):

9/ 25 is also wrong

OpenStudy (anonymous):

it can't be,the 2 triangles are similar,their ratio is 3/5 so the ratio of their areas is k^2=9/25,try it as a decimal

OpenStudy (anonymous):

it is still wrong.

OpenStudy (anonymous):

have you got the answer?

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