Online Tutors

Lesson: Areas of Regular Polygons

Learn how to find areas of regular polygons whose side lengths are known. In this lesson, discover how to use your knowledge of trigonometry and angles in regular polygons to calculate areas.

Video: Area of a Regular Polygon

Worksheet: Areas of Regular Polygons • 16 Questions

Q1:

Find the area of a regular 14-sided polygon given the side length is 21 cm. Give the answer to two decimal places.

Q2:

Find the area of a regular 15-sided polygon given the side length is 66 cm. Give the answer to two decimal places.

Q3:

The side of a regular octagon is 5 cm long. Find the area of the octagon giving the answer to two decimal places.

Q4:

The side length of a regular pentagon is 13 cm. Find the area of the pentagon giving the answer to three decimal places.

Q5:

The side length of a regular pentagon is 6 cm. Find the area of the pentagon giving the answer to three decimal places.

Preview