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Its radius would be 4cm long. You split it in half.

Q: If the diameter is 8cm how long is its radius?

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It has a circumference of 50.3cm

It depends on the ratio of what of the circle? Its circumference, diameter, area?

Since diameter is 2 x pi x radius, 8 cm / 2 / 3.14 is about 1.3cm. Specifically, 1.2732cm.

The diameter is twice the radius.

The volume is 1608.5cm3

Related questions

radius=4cm diameter=8cm *radius is half the diameter

8cm. The radius is always half the diameter.

It has a circumference of 50.3cm

You have to understand that two radius makes up a diameter. That means if given the radius you can just times it by 2 to get the diameter 4 cm= 8cm diameter

Circumference of a circle: 2*p*radius or pi*diameter

It depends on the ratio of what of the circle? Its circumference, diameter, area?

Since diameter is 2 x pi x radius, 8 cm / 2 / 3.14 is about 1.3cm. Specifically, 1.2732cm.

The diameter would be 8cm, because the diameter is always double the radius. That's why the formula 2'Pi'r is also known as 'Pi'd.

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What is the perimeter of a three Quarter with 3m radius

A radius is half of the diameter.

The diameter is twice the radius.