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Q: What is the exact area of the circle with the given radius or diameter r 11.64 m?

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Radius = Diameter/2.

Radius of a circle = diameter/2

If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi

Double the radius

if you are given the circle's "height" then that is the diameter. the diameter is twice the length of the radius, so divide the height by two and you will get the radius.

The radius of a circle is half of the diameter! So, if the diameter was four inches, the radius would be two inches!

Diameter =2R(whare R-Radius of the circle)

You times the radius by 2.

Divide the diameter by 2.

you cant: pi is the same for any circle - 3.1415... the diamter or the radius has to be given diameter divided by two equals the radius the radius times two equals the diameter

In order to fully understand what the radius of a given circle is, you must know the diameter. The diameter is the distance across the circle through the center. The radius of a circle is half the diameter. For example, if the diameter of a circle is 8 inches, then the radius would be 4 inches.

Diameter of a circle = 2*radius Circumference of a circle = 2*radius*pi

depends on the information given, but radius is half of the diameter.

Circumference = diameter*pi

The longest chord in a circle is its diameter and halve of this is its radius.

Circumfrence=diameter X 3.14 (diameter=2 X radius)

well, the radius is half of the diameter, so if i were you id divide by two

to get the radius of a circle given the diameter, than simply divide the diameter by 2 to get the radius. in this case, the answer to your question would be 37.5 cm. hope this helps!!!

The radius of a circle is equal to half of it's diameter. If you want to figure out the radius from a given diameter, simply divide the diameter by two:Radius = Diameter / 2Radius = 61 / 2Radius = 30.5 yd

The radius is half the diameter. The diameter is twice the radius. If the radius is 10 inches, the diameter is twice that, or 20 inches. The radius is any straight line that connects a point on the circle with it's center. The diameter is a line segment that connects two points on a cirle throught the center of the circle.Answer:Let r be the radius of the circle and d be the diameter of the circle. We know that the diameter = 2 * radius of the circle. Given the radius r = 10 inches. Diameter d = 2 * 10 Diameter = 20 inches.

Diameter = 2*33.9 = 67.8 cm

Area of a circle = pi*radius2 Radius = diameter/2

If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)

circumference of a circle = 2*pi*radius or pi*diameter

The radius of a circle is equal to 1/2 of it's diameter. radius is one half of the diameter. Therefore ; r = (1/2) D