The measure of an interior angle of a regular polygon is 120°. What is the measure of each exterior angle? The polygon has how m
any sides?
1 answer:
Answer:
60°, arms 6
Step-by-step explanation:
let the total arms = n
total generated angles in a regular polygon is = (n-2)×180
now,
(n-2)×180 = 120 n
or, 180n - 360 =120n
or, 60n = 360
or, n = 6
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