Question

In the diagram below, line segment bc is an altitude of triangle abd. To the nearest whole unit what is the length of cd.

Answer 1

a

Explanation:

Answer 2

A. 23

Explanation:

All of the right triangles are similar, so we can write the proportion ...

(short leg)/(long leg) = CD/CB = CB/CA

CD = CB²/CA = 32²/44 ≈ 23 3/11

The length of CD is about 23 units.