Question

∆ ABC ∼ ∆ PQR such that ar (∆ ABC) = 4 ar (∆ PQR). Find QR, if BC = 12 cm.

Answer 1

So answer is 3 cm.here h represent height.

Answer 2

GIVEN: ΔABC~ΔPQR

[ar ΔABC] = 4[ar ΔPQR]

HOPE IT HELPS U......