Mr. Haley is leaning a ladder again 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?

*Hint: Use Pythagorean theorem.*

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?