Area of a Sector Explained: Latest Blog

To remember, a field is a portion of a circle confined between its two radii and also the arc adjoining them. Let’s learn more about the area of a sector.

For example, a pizza piece is an instance of a field standing for a fraction of the pizza. There are two sorts of fields, minor and also significant sector. A small lot is less than a semi-circle field, whereas a large area is a sector that is higher than a semi-circle.

In this write-up, you will undoubtedly discover:

What the area of a Sector is.

Exactly how to find the area of a Sector; and also

The formula for the location of a sector.

What is the Area of a Sector?

A sector’s location is the region enclosed by the two spans of a circle and the arc. In simple words, the location of an Sector is a portion of the area of the circle.

How to Find the Area of a Sector?

To compute the area of a field, you need to understand the adhering to 2 specifications:

The size of the circle’s distance.

The measure of the maximum angle or the length of the arc. The central angle is the angle subtended by an arc of a sector at the circle’s facility. Can give up the primary angle levels or radians.

With the above two parameters, finding the area of a circle is as simple as ABCD. It is simply a problem of connecting the values in the location of the Sector formula given below.

The formula for the area of an Sector

There are three solutions for calculating the location of a field. Each of these formulas is used relying on the type of details given about the Sector.

Sector when the central angle is given up levels

If the angle of the Sector gives degrees. After that, the formula for the ar. of a Sector is offered by,

Area of an Sector = (θ/ 360) πr2

A = (θ/ 360) πr2

Where θ = the central angle in levels

Pi (π) = 3.14 and also r = the span of an Sector.

The location of a field provided the primary angle in radians.

If the primary angle gives radians, then the formula for determining the location of an Sector is;

Area of a Sector = (θr2)/ 2.

Where θ = the step of the central angle given in radians.

The area of a field offered the arc length.

Provided the length of the arc, the area is.

Location of an Sector = rL/2.

Where r = radius of the circle.

L = arc length.

Let’s exercise several instance problems entailing the sector.


Calculate the location of the sector shown below.


Area of a sector = (θ/ 360) πr2.

= (130/360) x 3.14 x 28 x 28.

= 888.97 cm2.