The average ages of three persons is 27 years. Their ages are in the proportion of 1:3:5.What is
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Answer:
156°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 15 , then
sum = 180° × 13 = 2340°
interior angle = =
= 156°