Question

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Answer 1

Answer:

• The measure of each exterior angle of a regular polygon = 360⁰/ n
• The measure of each exterior angle of a regular pentagon = 360⁰/5 = 72⁰
• The measure of an interior angle of a regular n-sided polygon polygon =180 ⁰ - 360⁰ /n

a regular pentagon has 5-sides n = 5

interior angle =180⁰- ( 360⁰/ 5 )

=108⁰

• We multiply 3 times 180 degrees to find the sum of all the interior angles of a pentagon, which is 540 degrees.

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