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Earn +20 ptsQ: Find Circumference of a circle if the area is 400π m2?
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If a circle has an area of 400 cm find the radius to the nearest tenth?
r = sqrt(400/pi) = 11.3 cm
If a circle has area of 400 square units then what is the radius?
If a circle has area of 400 square units then its radius is: 11.25 units.
What is the circumference of a circle with an arc of 90 and an angle of 81?
90*360/81 = 400 units of length.
What is the area of a circle with a radius of 20?
400 pi
Find the area of a circle with the diameter of 40m?
The area of a circle is (pi) times (the radius)2. The radius of the given circle is 1/2 of the diameter = 20m. Area = (pi) times (20)2 = 400(pi) = 1,256.64 square meters(rounded)
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