### Home > CCG > Chapter Ch10 > Lesson 10.3.4 > Problem 10-156

What is the measure of each interior angle of a regular

-gon?

Each angle of a regular polygon measures

. How many sides does this polygon have? Find the area of a regular octagon with sides

cm.

Check your answers by referring to the Checkpoint 10 materials located at the back of your book.

Ideally, at this point you are comfortable working with these types of problems and can solve them correctly. If you feel that you need more confidence when solving these types of problems, then review the Checkpoint

Answers and extra practice are located in the back of your printed textbook or in the Reference Tab of your eBook.

If you have an eBook for CCG, login and then click the following link: Checkpoint 10: Finding Angles in and Areas of Regular Polygons