The area of a circle = pi x radius squared where pi = 3.1416 therefore area = 3.1416 x 4 x 4 = 50.26 square cm
4 cm radius = Area of 50.26548 sq. cm.
A circle with a radius of 3 cm has an area of 28.27 square cm.
A circle with a radius of 2.7 cm has an area of 22.9 square cm.
A circle with a radius of 8.2 cm has an area of 211.24 square cm.
The area of a circle with a radius of 15 cm is: 706.9 cm2
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
The radius of a circle whose area is 3.14 square centimeters is: 1 cm
Area of a circle = pi (3.14) times the radius squared.
Using 3.14 as Pi the area of circle is: 28.259999999999998
The area of a circle with radius r is pi*r*r where pi = 3.1416 approx. When r = 6 cm, the area is 113.1 sq cm.
Using 3.14 as Pi the area of circle is: 32.153600000000004
Area = pi*r2 = 651.44 cm2
Area of a circle in square cm = pi*radius squared
4 cm radius = Area of 50.26548 sq. cm.
A circle with a radius of 3 cm has an area of 28.27 square cm.
A circle with a radius of 19 cm has an area of 1,134.11 square cm.
A circle with a radius of 2 cm has an area of 12.57 square cm.