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a polygon has 4 sides
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harshita5942:
my final exams are running after exam I'll go to 9th
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Answer:
5 sides
Step-by-step explanation:
If n is the number of sides, each interior angle a can be calculated by the following formula:
a= 180(n - 2)/n
a=108
Substitute:
108 = 180(n - 2)/n
Multiply both sides by n:
108n = 180(n - 2)
Distribute:
108n = 180n - 360
108n - 180n = -360
Combine like terms:
-72n = -360
Divide both sides by -72:
n = 5
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