Circumference

The circumference is the length around a circle, that is to say, it is the perimeter of the circle.

Circle

Circumference of a Circle Formula

Circumference of a Circle Formula

Examples

If the circumference of a circle is 43.96 cm, what is its area?

Circumference

Circumference Operations

Solution

Calculate the circumference of a wheel with a diameter of 90 cm.

Diameter of a Circle

Radius

Circumference

Calculate the area of the square inscribed in a circle with a circumference of 18.84 cm.

Area of a Circle Problem

Circle Exercise

By applying the Pythagorean theorem for one of the triangles, we obtain:

Circle Operations

Circle Solution