If it's a circular Pizza, you would measure across the middle of the pizza, from a point on one side of the circle to a point exactly 180 degress on the the opposite "side" of the pizza.
When advertised the measure of a pizza is its diameter. A 24 inch pizza therefore should have a diameter of 24 inches.
a plastic ruler or some string that can be measured once off the pizza
Is the 8 inches of the pizza the diameter or circumference? Is the 8-inches of the box the area of side length? If the diameter if the pizza and the side length of the box are both 8-inches, then the pizza will barely fit. If the circumference of the pizza is 8 inches, that means that the diameter is 8/pi = 2.546..... and that would fit in a box with side lengths of 8-inches. If the box's area is 8-inches, that means the side lengths are the square root of 8=2.828.... A pizza of diameter 8-inches won't fit, but a pizza of circumference of 8-inches will.
6
Twelve inches or thereabouts.
35 cm
The area of a pizza depends on the size of said pizza. If there is a certain pizza you would like to find the area of, all you need to do is: 1. measure the diameter of the pizza 2. split the diameter in half to get the radius 3. square the radius and multiply it by pi(3.14). For example, if I have a pizza with a diameter of 10 inches I would split that in half to get a radius of 5 inches. Then I would do this: (3.14) x 52. Which would end up being 78.5 in2. Tada, now you know how to get the formula of a pizza!
half the diameter times 3.141592654 squared
You measure it with the tape ruler thing or use pi (3.1415937) times the radius or the diameter. I forgot which one.
a plastic ruler or some string that can be measured once off the pizza
millimeter
depends on the size
46
Well, pizza is one of the examples. Divide the circumference by the diameter. There's pi!
14'' in diameter, usually 8 slices of Pizza
24 inches, because the radius is always 1/2 of the diameter.
The DeLonghi Convection Toaster Oven can fit a small pizza which is around 16cm in diameter.