Q: How do you find the radius a circle if you have the diamiter?

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16 cm

Since: area = pi * radius2 Then: Radius = square root ( area / pi ) And: Diameter = radius * 2

yes the radius is half the diameter. It goes from the edge of the circle to the centre.

The area of a cirle is: PI * r2 Where "r" is the radius, and PI is approximately 3.14. Hint: A radius is half of the diameter.

Multiply the diameter by 3.14 (pi).

Related questions

A circle with a radius of 5.

The diameter of a circle is twice its radius.

If you do not have the area, what do you have? The radius is half the diamiter The radius is PieR2 Worked backwards if you know the circumfrence.

16 cm

Since: area = pi * radius2 Then: Radius = square root ( area / pi ) And: Diameter = radius * 2

since the equation to get circumference is diamiter X pi, and the diamiter is 2x the radius, yes it would double the C of the circle ie before radius is 2, so diamiter is 4 4 X Pi 12.57... radius is 4 so the diamiter is 8 8 X pi = 25.13... that would double it.

Radius = Half Diameter So, To Find The Radius You Times 80 By 2 ( 80 x 2 ) = 160 Hope It Helped

yes the radius is half the diameter. It goes from the edge of the circle to the centre.

the main definition of diameter is the measurement of straight down the middle of a circle or some other shapes but mainly circles

Diameter = 1/2 of the circle's radius. Diameter = 2 times the square root of (the circle's area/pi) Diameter = the circle's circumference/pi

The area of a cirle is: PI * r2 Where "r" is the radius, and PI is approximately 3.14. Hint: A radius is half of the diameter.

Multiply the diameter by 3.14 (pi).