Question

How long must a ladder be to reach the top of a 12-foot wall if the bottom of the ladder is placed 3 feet from the base of the wall

Answer 1

12.37 ft

Explanation:

Hypotenuse(c): the ladder

Cathetus: the wall (a=12) and the floor (b=3)

Equation:

`c^(2) =a^(2) +b^(2)`

`c^(2) =(12)^(2)+ (3)^(2) =144+9`

`c^(2) =153`

`c=√(153)`

`c=12.37`

The ladder is 12.37 feet long

Hope this helps

Answer 2

Answer: 13 feet

Explanation: