find the number of sides of a polygon if the sum of its interior angle is 1440
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Answer:
The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440. We found this by using the formula (n-2)(180). Thus, to find the measure of each interior angle we simply divide the sum by the number of total sides in the polygon. 1,440/10 = 144
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Answer:
10 Sides
Step-by-step explanation:
(2n−4) right angles = 1440 °
(2n−4)×90=1440
2n−4=16
2n=20
n=10 sides
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