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Question

Find the perimeter of a regular octagon whose side measures 16 cm.


A

126 cm

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B

118 cm

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C

128 cm

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D

120 cm

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Solution

The correct option is C

128 cm


Perimeter of a regular polygon = number of sides × length of side

A regular octagon has 8 equal sides.

Measure of one side = 16 cm

Perimeter = 8 x side

= 8 x 16

= 128 cm.


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