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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.

Q: Define radius of a circle

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pi is the ratio between the radius and the circumference of the circle if the radius is 1 the circumference is pi

Yes

The variable r in geometry equations referrs to the radius. The radius is the distance between the center of the circle and its edge, such that 2 x r = d where d = diameter (width). You can define the size or volume of a circle or sphere simply by knowing its radius.

The radius of a circle is half the circle's diameter

the radius of a circle is r

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A point. To learn why and more about circles go to this website: windowseat.ca/circles

pi is the ratio between the radius and the circumference of the circle if the radius is 1 the circumference is pi

// macro definitions: #define PI 3.14159265358979323846 #define CIRCUMFERENCE(radius) (2. * (radius) * PI) // use this as in CIRCUMFERENCE(21.34)

Yes

Both the radius and the diameter are measurements which define a circle. The diameter is the distance straight across a circle from one edge to the other, passing through the midpoint of the circle. The radius is half of the diameter. Therefore, it is incorrect to say that either comes before the other.

The radius of the circle.

Well, since the circle is inside the square, the edges of the square define the limits of the circle. Since we have a square, the length of each side is the square root of 800ft. The radius of the circle is half the length of the sides. Therefore, the answer is half of (the square root of 800), which makes for an ugly radius value of "14.142135623730950488016887242097" ft

The variable r in geometry equations referrs to the radius. The radius is the distance between the center of the circle and its edge, such that 2 x r = d where d = diameter (width). You can define the size or volume of a circle or sphere simply by knowing its radius.

the radius of a circle is r

The radius of a circle is half the circle's diameter

Radius of a circle= Perimeter of the circle/2*pi Radius is half the diameter Radius is the length of a straight line from the center point of the circle to the edge of the circle.

The radius of a circle is half the diameter so if the radius of a circle is r, then the diameter is 2r.