Question

Jenny wants to know how long the slide is at the playground. She knows the height from the bottom of the ladder to the top of the slide is 6 feet. The bottom of the ladder forms a right angle with the ground. She also measures the distance from the bottom of the ladder to the end of the slide which is 9 feet. What is the length of the slide rounded to the nearest tenth? The slide is approximately ? feet long.

Answer 1

10.8 ft
36+81=c^2
117=c^2
10.8=c

Answer 2

The slide is hypotenuse , the ladder and the distance from the ladder to the end of the side are legs, so we can use Pythagorean theorem 
length of the slide =c,
c^2= 9^2+6^2
c^2=81+36=117
√117=10.8  ft