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Q: If the diameter of a circle is 3 cm what is the radius?

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the radius is half of the diameter, so 6 cm

6

Six feet

3 meters, 1/2 of the diameter

If you mean area of a circle with a radius of 25 cm then it is:- Area = pi*252 = 1963.495 square cm to 3 decimal places

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If the diameter is what you are talking about that is 6 cm, you must divide that number by two to find the radius because the radius is half a diameter. The radius of a circle with a diameter of 6 cm. would be 3 cm.

6/2 = a radius of 3 cm

3 cm

use a calculator

The radius of a circle is half the diameter, so the radius of a 6 inch diameter circle is 3 in.

radius = half diameter. Area = radius x radius x pi = 1.5 x 1.5 x3.1415 = 7.07 sq cm

A circle with a radius of 3 cm has an area of 28.27 square cm.

The radius of the circle is 1.5 units and the diameter is 3 units.

the radius is half of the diameter, so 6 cm

Since with circles the radius is half the diameter, the diameter would be 6 cm.

Radius 3

1.8 cm The radius is half of the diameter.

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