Question

The interior angles of an octagon are 2x, 1/2x, (x + 40)°, 110°, 135°, 160°, (2x + 10)° and 185°. Find the value of x.

Answer 1

Use the fact that the sum of all the interior angles of an octogon add up to 180(6)° to form your equation.

Answer 2

x =80

Answer 3

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Answer 4

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