Circle Area Formula
How to find the area of circle?
Area of a circle can be determined by using the formulas:
- Area = π x r2, where, r is radius of circle
- Area = (π/4) x d2,where, d is diameter of circle
- Area = C2/4π, where, C is circumference of circle
Write the formula for circumference of a circle.
Circumference of circle is the boundary of the circle. Circumference can be calculated by multiplying the radius of circle with twice π. i.e. Circuference = 2πr.
What is area of circle in terms of diameter ?
The formula of the area of the circle, using the diameter of the circle is π/4 × diameter2.
What is area of circle when the circumference is given?
When circumference of the circle is given then its area is calculated easily using the formula,
Area = C2/4π
where,
C is the circumference of the circle
Area of a Circle: Formula, Derivation, Examples
Area of a Circle is the measure of the two-dimensional space enclosed by a circle. It is mostly calculated by the size of the circle’s radius.
Let’s learn how to find the area of the circle using the formulas, with the help of examples.
Table of Content
- Area of Circle
- Area of Circle with Radius
- Area of Circle in terms of Diameter
- Area of a Circle using Circumference
- Area of Circle Examples