Question

2 The diagram shows a

piece of coin in the
shape of a regular
polygon with 12 sides.
Determine the size of
(a) intenor angle of the
coin,
(b)<OAB.




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Answer 1

Diagram? There is no diagram given.

a.

`i = (180(n - 2))/(n)`

`i = (180(12 - 2))/(12) = (180(10))/(12) = (1800)/(12) \\ i = 150\degree`

Cannot solve b without the diagram.