# How To Find The Length Of The Radius Of A Circle If I Know The Length Of The Diameter?

## 8 Answers

Anonymous answered
Diameter is double the radius so you would divide the diameter by 2
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Suhail Ajmal answered
The radius of a circle is half of it's diameter. Suppose the diameter of a circle is 10 cm then the radius would be 5 cm.
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Anonymous answered
>>> for 4th guest >>> a diameter is the length across from something. Like a circle. A line would go right thru it and that line would be the diameter. Horizontally ------ side to side =]]. Hope I helped.

& half of a diameter is the radius. For example the circle is 16 cm, half of that would be 8cm. So the radius is 8 cm.
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Mainul Hussain answered
Diameter=1/2  X  radius
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Anonymous answered
(x-1)^2 + (y-3)^2 = 36
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Anonymous answered
Length of radius = length of diameter / 2

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For example, the length of diameter is 4 cm , then its radius would be 2 cm. Radius is the distance from centre to any point on circumference.
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Anonymous answered
A circle is drawn on a coordinate plane. The endpoints of a diameter are x(7,3) and y (1, -5)
What are the coordinates of the centre of the circle?
Show work.

What is the length of the radius...show work
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Anonymous answered
No I'm looking for the diameter like what is it
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