a) A blimp flies over a football field. Two spectators, 150 yards apart, see the blimp with angles of elevation of 74º and 81º. What is the height of the blimp?
b) Find the area of the triangle with sides: a=4, b=6, c=9.
c) Find the area of the triangle with a=12, b=10, angle C=48 degrees.