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Question

Determine the value of each interior angle (in degrees) of a regular decagon.
  1. 144

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Solution

The correct option is A 144
A decagon has 10 sides.

Therefore, the sum of the measure of the interior angles will be,
=(n2)×180

=(102)×180

=8×180

​​​​​​​=1440

The measure of each interior angle is equal to 144010=144

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