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Earn +20 ptsQ: What is the radius if 9 is the circumference?
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How is the circumference of a circle with radius 9 cm related to the circumference of a circle with diameter of 9cm?
Doubling the radius doubles the circumference.
A circle has a circumference of 18 pi so what is the radius of this circle?
If a circle has a circumference of 18pi, the radius is 9.
What is the circumference of a circle with a radius of 9?
Circumference=2πradius (π is pi) so... C=2*π*9=18π≈56.549
Circumference of a circle with radius 9 inches?
r2*pie=circumference 9(9)*pie 81*pie 254
What is the length of the radius if the circumference equals 18x3.14 for pie?
9. Circumference equals 2 times Pi times the radius. C=2(pi)r. "r" for radius. So if your circumference is 18 times pi, then you do 18 divided by 2, which gives you a radius of 9.
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