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Question

Area of a regular octagon of side length 2 cm is -


A

2 ( √2 + 1 ) cm2

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B

3 ( √2 + 1 )cm2

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C

( √2 + 1 )cm2

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D

4( √2 + 1 ) cm2

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Solution

The correct option is D

4( √2 + 1 ) cm2


Area of a regular octagon = 2(2+1) a2

a = 2

Area = 4(2+1) cm2


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