Posted by Kaley on Monday, May 17, 2010 at 10:03pm.
One side of a triangle is 15 inches, and the area of the triangle is 90 square inches. What is the area of a similar triangle in which the corresponding side is 9 inches?

Geometry  Reiny, Monday, May 17, 2010 at 10:20pm
Why not use the concept I showed you in
http://www.jiskha.com/display.cgi?id=1274147511
for a similar problem.
let me know what you got for this one.

Geometry  kaley, Monday, May 17, 2010 at 10:46pm
i don't understand this

Geometry  Reiny, Monday, May 17, 2010 at 11:07pm
area2/90 = 15^2/9^2
area2/90 = 225/81
area2 = 90(225)/81 = 250
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