Maths Formulas Of Circle

The circumference c of a circle is a measure of the distance around the circle.

Maths formulas of circle. And r is the radius of a circle. X a 2 y b 2 r 2. Circumference of a circle. Equation of a circle.

Here origin of the circle o diameter d and radius r. Circle formula circumference formula of a circle. The circle formula in the plane is given as. Area and circumference of a circle.

Formulas related to circles. Also it has rotational symmetry around the centre for every angle. Area of a circle. H k is the coordinate of the centre of a circle.

Where x y are the coordinate points. Circle formulas in math. X h 2 y k 2 r2. A circular ground has a diameter of 800 m.

Now area of circular ground a pi r 2 pi 400 2 frac 22 7 400 400 502857 14 sq m. Arc and sector of a circle. In coordinate geometry a. Segment of circle and perimeter of segment.

The circle formulas are expressed as diameter of a circle. D 2 r. The area of a circle is the plane region bounded by the circle s circumference. So when we plot these two equations we should have a circle.

First we have to find radius of the circle as r frac d 2 i e r frac 800 2 r 400 m. Y 2 25 x 4 2 y 2 25 x 4 2. Area formula of a circle. Calculate the area of the circle.

Area of a circle a π r 2 π 4 d2 0 7854. Area of the circular ring. Solved examples on circle formula q.