Question

Given triangle abc~triangle pqr ,if ab /pq =1/3 ,then find ar (triangle abc and area of triangle pqr

Answer 1

Since ratio of square of corresponding sides of similar triangles is equal to the ratio of areas of two triangles , therefore
(1/3)×(1/3) = ( ar abc/ar pqr)
1/9 = ( ar abc/ar pqr)