18 pizzas were orderd for a holiday party at reedy creek elementary there were cheese and pepperoni pizzas of 1/3 of the pizza w
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In a parallelogram, opposite angles are congruent.
This means that the four angles of the parallelogram are:
Moreover, the sum of the interior angles of a polygon with n sides is 180(n-2). So, the sum of the interior angles of a parallelogram is 360.
This means
And since , we have