Question on: WAEC Mathematics - 2011

A regular polygon of n sides has each exterior angle to 45o. Find the value of n

A
6
B
8
C
12
D
15
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Correct Option: B

Each interior angle = (\frac{360^o}{n})

45o = (\frac{360^o}{n})

45on = 360o

n = (\frac{360^o}{45})

= 8

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