The area of a circle of radius 21 is 1386
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
Using 3.14 as Pi the area of circle is: 1384.74
Using 3.14 as Pi the area of circle is: 1384.74
A circle with a radius of 21 yards has an area of 1,385.44 square yards.
The area of a circle of radius 21 is 1386
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
Using 3.14 as Pi the area of circle is: 1384.74
A circle with a radius of 21 units has an area of 1,385.44 square units.
Using 3.14 as Pi the area of circle is: 1384.74
About 1385.44cm2
About 1385.44cm2
If the area is a circle and the radius of the circle is 21 miles, the distance around the circle (circumference) is 131.95 miles. The area of that circle is 1,385.4 square miles.
A circle with a radius of 21 yards has an area of 1,385.44 square yards.
The area is 441 times pi.
The area of a circle is calculated using the formula A = πr^2, where A is the area, π is a constant approximately equal to 3.14159, and r is the radius of the circle. Plugging in the radius of 21cm into the formula, we get A = 3.14159 x (21)^2 = 1385.44 square centimeters. Therefore, the area of a circle with a radius of 21cm is 1385.44 square centimeters.
area goes as radius squared 1.1 x 1.1 = 1.21 or 21%