Radius
A straight line from the center to the circumference of a circle or sphere.
Radius is a measurement of a distance from the center of a circle to any point on the edge, also known as the circumference of the circle. It is defined as half the diameter of the circle. The formula for calculating the radius of a circle is:
radius = diameter / 2
For example, if a circle has a diameter of 10cm, we can find its radius by dividing the diameter by 2:
radius = 10cm / 2
radius = 5cm
So, the radius of the circle is 5cm. The radius is an important measurement in geometry and trigonometry, with many applications in science, engineering, and technology.
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