Three of the interior angles of a polygon are equal to each other The remaining angles are 145, 100 and 115" Find the size of cache of the three equal angles

The size of each of the three equal unknown angles is .

Explanation:

Let the the unknown angle be represented by x. The polygon is a hexagon, which has three sides and angles.

sum of angle in the hexagon = (n - 2) x

n = 6, so that;

Sum of angle in the hexagon = ( 6 - 2) x

                                                = 4 x

                                                =

Therefore;

x + x + x + + + =

3x + =

3x = -

3x =

x =

The size of each of the three equal unknown angles is .

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hope this answer you! have a great day.