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In the case of a circle, or spehere, the diameter is twice the radius.

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12y ago
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Q: What is the diameter if the radius is 42 cm?
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Related questions

What is the radius of a circle that has a 10 cm diameter?

diameter = radius × 2 → radius = diameter ÷ 2 = 10 cm ÷ 2 = 5 cm


What is the radius of a circle with a diameter of 15 cm?

The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm


What is the radius and diameter of a circle 10-cm?

radius 5 cm diameter 10 cm


What is the diameter of a circle whose radius is 8 cm?

Diameter = Radius * 2 In this case, radius = 8 cm so diameter = 16 cm


The diameter of a circle is 12 cm what is its radius?

If the diameter is 12 cm the radius is 6 cm.


What is a circle's diameter if the radius is 7 cm?

The diameter of a circle is double the radius. So a circle with a radius of 7 cm has a diameter of 14 cm.


What is the diameter if the radius is 7 cm?

The diameter would be 14 cm, since the diameter is twice the radius.


If The diameter of a circle is Cm what is the radius?

it is half the diameter e.g 10cm diameter = 5 cm radius


What is the radius of a circle with a 6.2 cm diameter?

The radius (radii) of a circle is 1/2 of the diameter. The radius of a circle with a 6.2 cm diameter is 3.1 cm.


What is the diameter of a circle if the radius is 8 Cm?

The radius is always exactly half of the diameter, so if the radius is 8 cm, then the diameter is 16 cm.


What is the diameter of a circle with a radius of 12cm?

the diameter of a circle is double the radius so if the radius is 12 cm then the diameter is 24 cm


What is the length of the diameter if its radius is 15 cm?

The length of the diameter will be 30 cm if the radius is 15 cm.