8.5 x 8.5 x (355/113)
The area is 201.1 square inches.
using area = pi *r^2 we get: 314.1592654
14 inches.
6.283 inches
The radius of a circle is half the diameter, thus your measurement is 30 inches
The area of a circle, if it has a diameter of 13 feet, is: 132.7 square feet.
32"
Diameter of a circle is defined as twice the radius. So if diameter is 12, the radius is 6.
pi x 2.5 squared because 2.5 is the radius. the radius OS half the diameter. the formula for area of a circle is pi x r squared. pi is 3.141593
The area of a circle is pi(r)^2 (Pi times r squared) r = (1/2) dSo if the diameter is 13, the radius is 6.5Now use the equation:A=pi(6.5)^2A=pi(42.25)A=132.73 square inches.
The radius (not raduis) is 8 inches.
the perimeter is 3 times as long as the diameter Example: if my diameter is 7 inches long my perimeter is 3 times as much so it is 21 inches long