. such that ar ( ) = 4 ar ( ). If BC =12 cm, then QR =

Question

Philoid · Accepted Answer

Given ar (ΔABC) ~ ar (PQR) such that ar (ΔABC) = 4 ar (ΔPQR) and BC = 12 cm

We know that ratio of areas of two similar triangles is equal to the ratio of squares of their corresponding sides.

∴ QR = 6 cm

. such that ar () = 4 ar (). If BC =12 cm, then QR =