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Earn +20 ptsQ: How do you figure out the radius of a circle?
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How do you figure the diameter of a circle?
2 times pi times radius
How do you figure the area of a circle with radius of 8 cm?
A = Pi(r)2: A circle with a radius of 8 cm has an area of 201.06 square cm.
How do you figure out the circumference of a circle?
Take "pi" times the diameter of the circle. Pi = 3.14159 (ALWAYS) If circle has a diameter of 10cm, circumference 31.41cm If circle has a radius of 2inches, the circumference is 12.57 inches. (radius = 2, diameter = 4)
What is the area of a circle with a radius of 9.4 cm?
The formula is (pi x radius to the power of 2), so its 3.14 x 82.6= figure it out
How do you find the area of a shaded circle and the area of an unshaded circle on that is inside the other circle?
To find the area of the circle pi*radius*squared and subtract the area of the figure inside
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