To find the radius of the cylinder you will use the volume formula and solve for the radius.
V = pi x r^2 x h
83 = 3.14 x r^2 x 10
83 = 31.4 x r^2; divide both sides by 31.4
r^2 = 2.6; find the square root of 2.6
r = 1.6 in.
The radius is approximately 1.6 in.
2 feet by 4 feet. 4 feet is the length becuase it is double 2.
There is only 20 different ways you can do for 1 topping and 1 cheese for this question. Because every topping(10) on every cheese(2) gives you 20 different choices you can have a pizza.