Question

May anyone help me please and thank you so much !

Answer 1

16 m

Explanation:

The situation can be solved by proportion of corresponding sides in 2 right triangles.

let x be the length of shadow cast by oak tree, then

`(9)/(12)` =
`(12)/(x)` ( cross- multiply )

9x = 144 ( divide both sides by 9 )

x = 16

Length of shadow is 16 m