The volume of a sphere with radius r is (4/3)*pi*r^3 and the surface area is 4*pi*r^3. If a sperical balloon has a volume of 4500 pi cubic centimeters, what is hte surface area of the balloon in square centimeters?	Choices
A) a. 40	B) b. 100	C) c. 400	D) d. 1,000	E) e. 2,000
The surface area is 4.pi.r^2 (its area remember not volume)   as 4/3.pi.r^3=4500pi   r=15   so area = 4.pi.r^2= 900.pi= 900 x 3.14 = 2000 (approx)   e. 2,000
<result>E</result>
The volume of a sphere with radius r is (4/3)*pi*r^3 and the surface area is 4*pi*r^3. If a sperical balloon has a volume of 4500 pi cubic centimeters, what is hte surface area of the balloon in square centimeters?