Question

tell the formula of circle
formula of circumference of circle
etc

Answer 1

Answer:

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☆Circle is a particular shape and defined as the set of points in a plane placed at equal distance from a single point called the center of the circle. We use the circle formula to calculate the area, diameter, and circumference of a circle. The length between any point on the circle and its center is known as its radius.Any line that passes through the center of the circle and connects two points of the circle is known as the diameter of the circle. Radius is half the length of a diameter of the circle. Area of the circle describes the amount of space covered by the circle and the length of the boundary of the circle is known as its circumference.

Answer 2

Circumference

2πr

Perimeter(Semi-circle)

πr

Area of Semi-circle

πr²/2

Area of circle

πr²