Q: What is the area of a circle with the radius of 21?

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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

Area = pi*212

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.

Related questions

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.

Area = pi*212

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.

A circle with the radius of 21cm would have an area of approximately 1384.74 cm. You would find this by using the equation of pi*(radius^2) = pi*(21^2).

area goes as radius squared 1.1 x 1.1 = 1.21 or 21%