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The radius of a circle is the distance from the centre of the circle to a point on the circumference of the circle.

If it is a drawing and the circle is to scale the radius can be measured with a ruler. If not, the radius can be calculated if the diameter, circumference or area of the circle is known.

the radius is equal to:

- the diameter divided by 2

- the circumference divided by 2pi(approx. 6.284)

- the square root of the area divided pi (divide by pi first, then take the square root)

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Q: How do you find out the radious of a circle?

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using pi

You can't find the height of a cylinder if you know the radious, because the radious only determines how many units the circle is around. so it's impossible to find the height of a cylinder if you only know the radious.

Ok i need help because i dont know

The radius of a circle is any straight line from the centre of the circle to its circumference. The radius can also refer to the length of this line.

The radius of a circle is the distance from its centre to its circumference. If a circle has a radius of r units then the length of its circumference is 2*pi*r units.

The circumference of a circle with radius of 6 is about 37.7

The radius of a circle is a straight line from the centre of the circle to its circumference.

From the center to an outside part. Half the diameter

Diameter, cord, radious.

C=31.40

About 408.41 inches.

A circle with a radius of 5 feet has a circumference of 31.4 feet.

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