Question

Somebody help me!!!!!!!!!!!!!!!!!!!!! (Geometry)

Answer 1

Hello!

You can make a proportion

$\frac{3}{5} = \frac{36}{x}$

Cross multiply

36 × 5 = 180

Divide by 3

180 ÷ 3 = 60

$\framebox {60 feet}$

Answer 2

Use similar triangles to solve this.  3 is to 36 as 5 is to x.  Setting that up as a proportion gives us  $\frac{3}{36}= \frac{5}{x}$.  Cross-multiply to get 3x=180.  That means that the length of the ladder has to be 60 feet long to be safe.