Question

A tree casts a shadow 32 feet long. At the same time, a nearby 2-foot shrub casts a 5-foot shadow. How tall is the tree?

Answer 1

12.8 feet tall

Explanation:

think of it as a proportion.

height of tree H, shadow of tree S, height of shrub A, shadow of shrub B.

H/S = A/B

H = (S X A)/B

H = (32 X 2)/5

H = 64/5

H =12.8 (feet)

Answer 2

12.8 feet tall

Explanation:

32/2.5=12.8