Question

Find BC, if the area of the triangle ABC is 36 cm² and the height AD is 3 cm.

Answer 1

Height = 3 cm, Area = 36 cm²

Area of the triangle ABC =`1/2bh`

36 = `1/2` × b × 3

b = `(36 xx 2)/3` = 24 cm

So, BC = 24 cm.