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Earn +20 ptsQ: What is the circumference of a circle that has the area of 4pi?
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If a circle's circumference is 4pi inches and it's area is 4pi square inches what is the radius of the circle in inches?
Circumference is pi * r * 2. Area is pi * r2. In your circle, both r * 2 and r2 equal 4. Your radius is 2 inches.
How do you find the area of a circle if only given the circumfe rence?
Area = Circumference squared divided by 4pi.
What is the circumference of a circle with a diameter of 4 in?
Well, the circumference of a circle is its diameter x pi (for the purposes of this, we will consider pi to be 3.1415) so that the circumference can be expressed as 4pi or as 12.566.
What is the circumference of a circle using 3.14 as pi and 4m as the diameter?
12.56m or 4pi(m)
What is the square feet of a 80 foot circumference?
A circumference, C, of 80 feet defines a circle of radius R as C = 2 pi R and the area of the circle is A = pi R^2 A = C^2/4pi = 509.55 sq ft
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