Circumference = 2*pi*r = 50.265 metres
Area: A = pi x r2 A = 3.14 x (8m)2 A = 200.96m2 Circumference: C = 2 x pi x r C = 2 x 3.14 x 8m C = 50.24m
4m
C = (Pi)(diameter) C = 25.1 meters
If that's the radius, use the standard formula for the volume of a sphere.If that's the diameter, divide it by 2 to get the radius; then you can use the standard formula for the volume of a sphere.
Circumference = 2*pi*r = 50.265 metres
Approximately 50.26m, because circumference is equal to diameter times pi (or 3.1415). Or twice the radius times pi.
Area = 201 m2
Area: A = pi x r2 A = 3.14 x (8m)2 A = 200.96m2 Circumference: C = 2 x pi x r C = 2 x 3.14 x 8m C = 50.24m
4m
C = (Pi)(diameter) C = 25.1 meters
You multiply the diameter by Pi (about 3.1416). The result is the circumference:8m x 3.1416 = 25.1328 meters circumference
The formula for the area of a circle is A = pi*r2, where r is the radius of the circle. So, plugging r = 8m into the formula gives: A = pi*82 = pi*64 This is approximately 201.06193 square meters.
If 8m is its radius then the volume of the sphere is: 4/3*pi*8^3 = 2145 cubic m rounded
If that's the radius, use the standard formula for the volume of a sphere.If that's the diameter, divide it by 2 to get the radius; then you can use the standard formula for the volume of a sphere.
The volume of a cylinder with a height of 9m and radius of 8m is 1809.56m3
150.796 m2 (rounded)