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It is: pi*402 = 1600*pi square feet

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Q: What is the area of a circle that has a radius of 40 feet?
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Related questions

How many square feet in a 40' diameter circle?

Area of circle: pi times radius squared


How many square feet in 40 inch circle?

In general the formula for the area of any circle is: pi*radius squared


How many square feet in a 40 inch circle?

In general the formula for the area of any circle is: pi*radius squared


What is the circumference of a circle with a radius of 40 feet?

251.2 feet


What is the area of a circle with a radius of 40cm?

A circle with a radius of 40 cm has an area of 5,026.55 square cm.


What is area of a circle with 40 foot circumference?

Radius: 40/2pi = 6.366197724 Area: pi*6.366197724 squared = 127.324 square feet rounded


Is a circle with a area of 40 more less or same than a circle with a radius of 4?

In order to even discuss this question, we must assume that the unit of the '40' is the square of the unit of the '4'. -- The radius, diameter, and circumference of the circle with an area of 40 are each 10.794% shorter than the corresponding measurement in the circle with radius = 4 . -- Its area (40) is 20.423% less than the area of the circle with the radius of 4 .


What is the diameter of a circle with a radius of 20 feet?

Diameter = 2 * radius So in this case, 40 feet.


Diameter of circle in inches if the radius is 20 feet.?

40'


What is the radius of a circle with area of 40 square inches?

Radius = 3.57 inches.


How many square miles in a 40 mile radius?

The formula for the area of a circle is: 3.14 (pi) times the radius squared. A circle with a 40 mile radius would have an area of 3.14 x 40 x 40 = 5024 square miles.


How do you calculate the amount of fabric needed for a 40 ft circle?

area of a circle is calculated using the formula a=(pi)r2 where a is the area and r is the radius of the circle. so:if the diameter(distance from one edge of the circle to the other that passes through the mid point) of your circle is 40 feet then you would need approximately 1256 square feet give or take a couple square inches.if the circumference (length around the edge of the circle) of your circle is 40 feet then the over all area is 127.38 square feet.