This can get confusing. Even though we can see with our own eyes that the pie are round, we have to use the math formula that says the area is PI R SQUARED. A = pi R2 R = the radius = 1/2 the diameter = 8 inches pi R2 = pi x 82 = 64 pi = 201.06 square inches = 1.396 square feet (rounded)
half the diameter times 3.141592654 squared
Radius is one-half of the diameter of a circle. Therefore, the radius of an eight-inch diameter circle is four inches. The diameter of a circle is a straight line joining a point on the circumference through the centre to the 'opposite' point on the circumference.
The radius is half diameter, so in your case the radius would be 1.5 inches.
Diameter is two times the radius, in our case the radius is 10.4 inches, Can you now find the diameter. I am sure you can, good luck!
The radius is 3 inches pi*32*height = 271.4 cubic inches Divide both sides by pi*9 to find the height: height = 9.598811457 or about 9.599 inches
35 cm
47 pee pee meters. (different person) By inches you should mean square inches because you're talking about area. Now to find the area of a circle, you have to find out the radius of the circle. The radius is half of the diameter, and the diameter is a line that goes half way through the circle. So when you find the radius, multiply it by itself, then multiply it by pi (3.14). If you didn't learn about all of this yet, than there's no other way I could help.
You measure it with the tape ruler thing or use pi (3.1415937) times the radius or the diameter. I forgot which one.
The circumference c of any circle with diameter d is d X (pi). In this instance, 12 inches (3.14) = 38 inches, to the justified number of significant digits.
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!
It's Pi r squared of course! Or should I say PIE r squared? 8" pizza (3.142 x 4)2 = 157.95 10" pizza (3.142 x 5)2 = 246.80 Go on - you can do the 12".
Centimetre would be an appropriate unit although an inch is frequently used.
half the diameter times 3.141592654 squared
pi*diameter = 16 inches Divide both sides by pi to find the diameter: diameter = 5.092958179 or 5 inches to the nearest inch.
A diameter is a property of circular objects. "12 inches" is not a circular object and so cannot have a diameter.
Diameter is a length measurement. Cubic inches is a volume measurement. Diameter cannot be measured in or converted to cubic inches.
NO.