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Answer:
A regular polygon with each interior angle of 170 deg will have each exterior angle as 180–170 = 10 deg. Hence the number of sides in the regular polygon = 360/10 = 36 sides.
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Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer:
50
Step-by-step explanation:

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We make use of the special form for the difference of squares:
(a+b)(a-b) = a²-b²