Question

In the figure, AC=20cm CD=22cm and AE=16cm find the length of BD.

Answer 1

17.6 cm

Explanation:

Area of triangle equals to half of the base times height, i.e. A = 1/2 × b × h.

1/2 x 22 x 16 = 1/2 x 20 x BD

BD = (1/2 x 22 x 16) / (1/2 x 20)

BD = 17.6 cm