Best Answer

Multiply by 2 ! A radius is half a diameter !

Q: How do you find the diameter given the raduis?

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If the diameter is 9 units then the radius (not raduis) is 4.5 units.

If the radius (not raduis) is 25 feet then the diameter is 50 feet.

Assuming daimeter = diameter and raduis = radius, 1 diameter = 2*radius.

Radius = Diameter/2 so if diameter = 20 Radius = 20/2 = 10

the diameter of a circle is from one side of the circle to the other, and the raduis is always half, because the raduis is from the side to the middle, so the answer is 18

Related questions

To find diameter, multiply raduis by two.

If the diameter is 9 units then the radius (not raduis) is 4.5 units.

If the radius (not raduis) is 25 feet then the diameter is 50 feet.

The length of a radius (not raduis) is diameter/2.

radius is just 1/2 diameter so the answer is 34mm

A circle with a diameter of 8 inches has a radius (not raduis) of 4 inches.

Assuming daimeter = diameter and raduis = radius, 1 diameter = 2*radius.

Assuming the diameter is 10.8 then the radius (not raduis) is 5.4 units.

Diameter is 8 and a half

Radius = Diameter/2 so if diameter = 20 Radius = 20/2 = 10

diameter = 2*radius

the diameter of a circle is from one side of the circle to the other, and the raduis is always half, because the raduis is from the side to the middle, so the answer is 18