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Radius is half the diameter.

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2009-10-19 19:13:16
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Q: What is radius if diameter is 2.25?
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A circle has a radius of 15 Find the diameter and the area?

diameter = 30 units area = 225*pi square units

What is the diameter of a circle with 225 pi cm?

The given measure, 225*pi cm is a linear measure so it cannot refer to the area. It could refer to the radius or the circumference of the circles, or the length of an arc or a segment of the circle. It could, of course refer to something else, but then the task of finding the diameter is near impossible. If it is the length of an arc or a segment, you require further information. Since that is not provided, perhaps one can assume that the measure does not refer to either. That leaves the radius or the circumference. If the radius is 225*pi then the diameter is simply 2*radius = 450*pi cm. If the circumference is 225*pi, then the diameter is circumference/pi = 225 cm.

Calculating radius and diameter?

Radius = Diameter/2 Diameter = 2* Radius

How do you get the diameter from the radius?

to get the diameter from the radius you simply multiply the radius by 2 since the radius is half the diameter. d=2r where d = diameter and r = radius

What is the Diameter to a radius of a circle?

A radius is one half of a diameter so divide by two to get from a diameter to a radius. Or you can multiply the radius by 2 to get to the diameter.

How do you get the radius when you have the diameter?

radius = diameter/2

The length of a radius is the length of a diameter?

The length of a radius is not the length of a diameter. The diameter is two times the length of the radius.

What is radius if diameter is 8?

The radius is half the diameter. So, if the diameter is 8, then the radius is 4.

Diameter of circle..its radius?

A radius is half of a diameter. Example Diameter:4 Radius:2

How find area of a circle if diameter is 15?

pi * 225/4 Radius is 15/2 pi r2 = pi * (15/2)2 = pi * 225/4

What is the relation between radius and diameter?

The diameter of a circle is twice its radius.

How do you calulate radius into diametre?

the radius is one-half the diameter radius = diameter/2 diameter = 2 x radius

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