Question

Sally's cat is stuck in a tree 18 ft off the ground. The base of a ladder is placed 6 feet away from the base of the tree. What is the minimum length ladder needed to reach the cat (rounded to the nearest foot)

Answer 1

Use Pythagorean Theorem
a^2 + b^2 = c^2

18ft^2 + 6ft^2 = c^2
324ft + 36ft = c^2
360ft = c^2
√(360) = √(c^2)
~19ft = c