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Question

If two interior angles of a hexagon are 70 and 50 and all the remaining interior angles are equal to x, then x = ___.



A

160°

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B

150°

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C

140°

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D

120°

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Solution

The correct option is C

150°


A hexagon is a polygon of 6 sides, n = 6

Sum of interior angles of a 'n' sided polygon = (2n - 4) × 90

Sum of the interior angles of a hexagon = (12 - 4) × 90

  70 + 50xxxx = 720

120 + 4x = 720

 4x = 600

x = 150


Mathematics

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