Area of Regular Polygons

Area of Regular Polygons

Essential Question: How can I find the area of ANY regular polygon?

Open Ended

What is a REGULAR polygon?

Quick Review!

Check out out formula before you practice!

An example:

Fill in the Blank

Find the area of this polygon.

Multiple Choice

A quilt is in the shape of a regular pentagon. It is made from 5 pieces of fabric that are congruent triangles. Each triangle has an area of 16 in². What is the area of the quilt?

• 200 in²

• 40 in²

• 80 in²

• 16 in²

• none of these

Fill in the Blank

What is the area?

Fill in the Blank

Find the area

Multiple Choice

Find the length of OM

• 20

• 10

• 10√3

• 5√3

Steps:

Find the area of the hexagon.

Find the area of the octagon.

Fill in the Blank

Find the area of the regular polygon.

Round to nearest whole number

Fill in the Blank

Find the area of this regular polygon.

Round to nearest tenth.

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Poll

How confident are you about finding the area of a regular polygon?

• Feel great! I could teach someone.

• Doing okay, but maybe a few more?

• I'd like more practice.

• Other: my thoughts/feelings are not reflected here