1. The area of a rectangle is 20, and its diagonal is√104. Find its dimensions and perimeter. Long side:
Shorter side:
Perimeter:

2. A coin, thrown upward at time t=0 from an office in the Empire State Building, has height in feet above the ground t seconds later given by

h(t)=−16t^2+112t+288=−16(t−9)(t+2).

a) From what height is the coin thrown? Include units in your answer.
b) At what time does the coin hit the ground? Include units in your answer.