Videos and solutions to help GCSE Maths students learn how to find the area of circles, sectors and segments and their applications.

Learn to apply area of circles to real life problems

Example:

A circular window has a diameter of 6 ft. Find the area of the glass needed to fill the window. Use 3.14 for π

Learn how to find the area of a sector of a circle

Example 1:

Segment AC is a diameter of circle D and measures 14 cm. Central angle ADB measures 60°. Find the area and the circumference of sector ADB expressed in terms of π

Example 2:

A lawn sprinkler waters a circular portion of a yard. The radius of the circular potion is 7 ft. Calculate the area of the yard watered by the sprinkler to the nearest square foot.

Area of segment = Area of sector - Area of triangle

Examples:

1. Find the area of sector with a central angle of 60° and radius 8.

2. The area of a sector is 8π and the radius of the circle is 12. What is the central angle?

3. Find the area of the segment with radius 24 and central angle of 120°?

Example 1: Find the area of sector AOB

Example 2: Find the area of segment ADB

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.