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Question

if one of the interior angle of a regular polygon is found to be 98 times of one of the interior angle of a regular hexagon then the number of sides of the polygon is

A
8
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B
14
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C
12
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D
10
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Solution

The correct option is A 8
Given, one of the interior angles of a regular polygon is found to be equal to 98 times of one of the interior angles of a regular hexagon.
We know the interior angle of a regular hexagon is 1200
Hence, let, the interior angle of regular polygon is x0
According to the question,
x0=98×1200=1350
Now, let the number of sides of the polygon be n .
Then we know,
1350=(n2)×1800450n=3600n=8
Hence the number of sides is 8 .
option A is correct.

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