Question

Mr. Haley is leaning a ladder against the side of his house to repair the roof.

The top of the ladder reaches the roof, which is 16 feet high
The base of the ladder is 12 feet away from the house, where Mr. Haley's son is holding it steady
how long is the ladder

Answer 1

20 Feet long. Based on the given conditions, formulate: square root of 20 to the power of 2 +16 to the power of 2

Evaluate the equation/expression: 20

get the result: 20

Answer: 20