# Need math help: what is the measure of an interior angle of a regular pentagon

Anonymous
account_balance_wallet \$5

### Question Description

360 degrees

72 degrees

108 degrees

180 degrees

Borys_S
School: Cornell University

Hello!

For a pentagon the sum of all interior angles is 180*3 degrees = 540 degrees (ask why).

All angles of a regular pentagon are the same, therefore the measure of one angle is

540/5 = 108 degrees.

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Anonymous
Goes above and beyond expectations !

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