A 30 foot ladder is leaning against the side of a building and is positioned such that the base of the ladder is 21 feet from th

Question

3 years ago

7

e base of the building how far above the ground is the point where the ladder touches the building

1 answer:

dem82 [27] · Answer 1 · 2022-05-24T04:24:53+03:00

dem82 [27]3 years ago

3 0

Answer:

21.42ft

Step-by-step explanation:

a²+b²=c² where "c" is the hypotenuse of a right triangle and "a" and "b" are the two other sides

now let's plug in the values

21²+b²=30²

b²= 30² - 21²

b²= 459

b= 21.42