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just use the area formula ex...

area of circle= pi(r square)

if you know what your area is then plug it in then do PI / by area that will be your diameter to get the radius / your answer by 2

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Q: How do you find the center and radius of a circle?
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How do you get a radius?

# Find the center of the circle # Draw the line of the radius from the center to the circumference # Finish


How do you find the radius of the circle when you know the center and a point on the circle?

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If you know the length of a radius of a circle how can you find the length of the diameter?

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How do you find diameter when you have the radius?

The diameter of a circle is simply twice the radius of the circle. The radius is a line that starts from the center of the circle to the circumference of the circle. The diameter is a line that passes through the circle. diameter=2xradius


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Which term describe the distance from the center of a circle to any point on the circle?

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How do you find the diameter of a sphere?

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What is the radius and the area of a circle?

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Find the radius of a circle which has a diameter of 3.6cm?

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