1.) If the sum of the interior angle of a regular polygon is 1,080°, how many sides does a polygon have?
2.) Given the figure below, what is the measure of each exterior angle?
2.) Given the figure below, what is the measure of each exterior angle?
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Answer:
1. Formula:
(n + 360) ÷ 180
(1080 + 360) ÷ 180
1440 ÷ 180
= 8 sides
2. Formula: (360 ÷ no. of sides)
360 ÷ 5
= 72°