Lesson: Areas of Regular Polygons Glencoe • Geometry • Prentice Hall • Geometry • Common Core • Glencoe • Geometry • Common Core

Mathematics

In this lesson, we will learn how to find areas of regular polygons given their side lengths using a formula.

Video

15:24

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:

The perimeter of a regular pentagon is 85 cm. Find the area giving the answer to the nearest square centimeter.

Q3:

Find the area of a regular hexagon with a side length of 35 cm giving the answer to two decimal places.

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