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Earn +20 ptsQ: What is the area of a circle with a diameter of 400 miles?
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What is the radius of a circle with a diameter of 400?
The radius of a circle is always 1/2 its diameter.
How many square cm is a circle of 40 cm diameter?
Area of the circle: pi*20*20 = 400*pi square cm
What is the area of a circle with the radius of 20 inches?
Using 3.14 as Pi the area of circle is: 1256.0
What is the radius of a circle with an area of 400Π cm squared?
A = pi R^2 = 400 pi R^2 = 400 R = 20
Find the circumference of a circle if the area is 400 Pi meters?
First we have to find the radius: pi*radius2 = 400*pi square meters Divide both sides by pi and then square root both sides: radius = 20 meters 2*pi*radius or pi*diameter = circumference 2*pi*20 = 40*pi meters
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