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9 cm (r = d/2)

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Q: What is the radius with a circle with a diameter of 18cm?
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Related questions

If a circle has a radius of 9 cm how long is the circle's diameter?

The diameter is always double the radius so in this case, it is 18cm


What is the radius if the diameter is 18cm?

radius = 18/2 = 9 cm


What is the area of a circle if the radius is 18cm?

Using 3.14 as Pi the area of circle is: 1017.36


What is the area of a circle that has a radius of 18cm?

1,017.9 cm2


The diameter equals 18cm how do I find the area?

The general equation for the area of a circle is π*r2, where r is the radius of the circle, and π is pi, which is approximately 3.14159. The diameter of a circle is how far it is from one side of the circle to the other, and the radius is how far it is the from edge to the center, thus the radius is half the diameter. Therefore the area is π*(92) ~ 254.47


What is the area of a circle with an 18cm diameter?

A = 254.47 cm2


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


If the radius of a circle is 2cm what is the diameter?

Diameter of circle = 2 * Radius of the circle.


What is the radius of a circle if the diameter is 14in?

The radius of a circle is half of the diameter, so the radius of a circle with a diameter of 14in is 7in.


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.


What is the circumference of a circle with diameter 18cm?

18 pi cm

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