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Earn +20 ptsQ: What is the diameter of a circle if its radius is 30cm?
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What is the area of a circle where the diameter measures 30 cm?
Diameter = 30cm so radius = 15 cm. Then Area = pi*r2 = 706.9 cm2
How do the the radius and diameter of a circle compare?
The diameter of a circle is twice its radius
If the radius of a circle is r what is the diameter of the circle?
The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.
What is the diameter of a circle or a radius of in?
The diameter of a circle is twice its radius
When the diameter of a circle is 85.4 What is the radius of the circle?
The radius of a circle is always half of the diameter. If the diameter is 85.4, the radius is 42.7.
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