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Using 3.14 as Pi the area of circle is: 1384.74

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Willy Cummings

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2y ago
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6mo ago

The area of a circle is given by the formula A = πr^2, where r is the radius of the circle. Plugging in the value of the radius (21 feet), the area of the circle is approximately 1385.44 square feet.

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

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

The area of a circle of radius 21 is 1386


How man square feet in a 21ft diameter circle?

The area of a circle can be calculated using the formula: A = πr^2. If the diameter is 21ft, the radius would be half of that, which is 10.5ft. The area of the circle would be approximately 346 square feet.


What is the approximate area of a circle whose radius is 21 cm?

A circle with a radius of 21 cm has an area of ~1,385.44 square cm


What is the circumference of a circle with a radius of 21 feet?

65.94 feet


What is the area of a circle if the radius is twenty-one?

A circle with a radius of 21 units has an area of 1,385.44 square units.


What is the area of a circle when the radius is 21?

Area = pi*212


What is the area of a circle if the radius is 21?

Using 3.14 as Pi the area of circle is: 1384.74


What is the area of a circle with a radius of 21 centimeters?

About 1385.44cm2


What is the area of a circle with a radius of 21 cm?

About 1385.44cm2


How many miles in a 21 mile radius?

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.


What is the area of a circle that has a diameter of 42 yards?

A circle with a radius of 21 yards has an area of 1,385.44 square yards.


How many sq feet in a 21 foot diameter circle?

Area of any circle = (pi) x (radius)2Radius = 1/2 of the diameter.With this information, you can now find the area of any circle,including that one, on your own.