0
It is the distance across the entire span of the circle.
Draw a line from one side to the next side like a cord, except directly through the center so that the circle is split in 2 identical semi-circles. The length of this line is the diameter.
The radius of the circle is HALF the diameter so you have the relationships:
D = R/2
or
R = 2D
for R = the radius and D = the diameter
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Continue Learning about Math & Arithmetic
How do you find the diameter of water?
Only circles (or spheres) have a diameter
If a circles radius is 2.5cm what is the diameter?
The diameter of a circle is twice the radius.
How long is a penny?
Circles have a diameter, not length. The diameter of a US cent is 19 mm.
Is the radius of a circle half of the circles diameter?
Yes, the radius is half the diameter. (Eg, if the DIAMETER is 6, the RADIUS would be 3).
How do you find the diameter of a rectangel?
Circles have diameters, rectangles have diagonals.
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