Question

A 3 ft tree casts a 10 ft. shadow. How many feet long is the shadow of a 26 ft tall tree at the same time? If necessary, round to the nearest tenth.​

Answer 1

8 feet

Explanation:

It is given that, a 3 ft tree casts a 10 ft. shadow. It means that 1 ft long shadow will cast by
`(3)/(10)` feet long tree.

Let 26 ft tall tree will cast x feet long shadow. To find it using unitary method we get :

`x=(3)/(10)* 26\\\\x=7.8\ \text{feet}`

or

x = 8 feet

So, 8 feet long is the shadow of a 26 feet tall tree.