A circular cake tin has radius 20 cm and height 7 cm. When cake mix was added to the tin, its depth was 2 cm. After the cake was cooked it rose to 1.5 cm below the top of the tin.
a. a Sketch these two situations.
b. b Find the volume of:
i the cake mix
ii the cooked cake.
c. c What was the percentage increase in the volume of the cake while it cooked?