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.

asked Oct 5, 2022 51.6k views

2 votes

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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2 votes

Diagram? There is no diagram given.

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

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

Cannot solve b without the diagram.

Stuart Ellis answered Oct 10, 2022