Question

A cat is stuck on the roof if the ladder is 18 ft long and must be placed 9 feet away from the building how high can the ladder reach up the building to help save the cat.

Answer 1

9 feet is the answer

Answer 2

20.1

Explanation:

a^2+b^2=c^2

18^2+9^2=c^2

324+81=405

c^2 = crosses itself out

the square root of 405 is 20.1