Solve application problems using radical equations. Round both answers to the nearest tenth. show your work step by step.

1. Vince wants to make a square patio in his yard. He has enough concrete to pave an area
of 378 square feet. How long can a side of his patio be?


2. A hang glider dropped his cell phone from a height of 450 feet. How many seconds did it take
for the cell phone to reach the ground?