Question

A 65 ft tree casts a 13 ft shadow. At the same time of day, how long would the shadow of a 20 ft building be? (Draw a diagram to help you set up a proportion)

Answer 1

height of tree = 65 ft

length of shadow = 13 ft

Let draw a diagram to illustrate the question effectively

The proportion can be set up below

`\begin{gathered} (65)/(20)=(13)/(x) \\ \text{cross multiply} \\ 65x=260 \\ x=(260)/(65) \\ x=4\text{ ft} \end{gathered}`

Th shadow will be 4 ft. do you