Question

Aladder is leaning against a building so that the distance from the ground to the top of the ladder is 1 foot less than the length of the ladderFind the length of the ladder the distance from the bottom of the ladder to the building is 5 feet

Answer 1

13

Explanation:

5²+x²=(x+1)²

25+x²=x²+2x+1

2x=24

x=12

ladder = x+1 = 12+1 = 13