A = 254.47 cm2
The general equation for the area of a circle is π*r2, where r is the radius of the circle, and π is pi, which is approximately 3.14159. The diameter of a circle is how far it is from one side of the circle to the other, and the radius is how far it is the from edge to the center, thus the radius is half the diameter. Therefore the area is π*(92) ~ 254.47
18cm is about 7 inches
Area = pi*92 = 254.469 square cm to 3 dp
The area of a circle with a diameter of 9.4 m is: 69.4 m2
Assuming a diameter of 5 inches.The area of this circle is: 19.63
18 pi cm
The general equation for the area of a circle is π*r2, where r is the radius of the circle, and π is pi, which is approximately 3.14159. The diameter of a circle is how far it is from one side of the circle to the other, and the radius is how far it is the from edge to the center, thus the radius is half the diameter. Therefore the area is π*(92) ~ 254.47
Using 3.14 as Pi the area of circle is: 1017.36
9 cm (r = d/2)
1,017.9 cm2
The surface area of a sphere whose diameter is 18cm is 1018cm2
The diameter is always double the radius so in this case, it is 18cm
18cm is about 7 inches
The diameter of a circle with an area of 37.68 is 6.92
Area = pi*92 = 254.469 square cm to 3 dp
The area of a circle with the diameter of 3m is 7.069 m2
The area of a circle with diameter of 4.9 is 75.43 units2