posted by lisa .
if triangle abc is similar to xyz and the area of abc is 8 square inches, what is the area in square inches of xyz. the triangles are right isoseleces triangles and the base of abc is 4. the base of xyz is 10.
side ratio xyz:abc = 10:4 = 5:2
area ratio is 10^2/4^2 = 25:4
area of xyz is 8*25/4 = 50