Question

the measure of one angle of a quadrilateteral is 120 and measure of each of remaining angle is equal find the angles
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Answer 1

Answer:

80°

Step-by-step explanation:

Let the three equal angles be equal to x°

Sum of angles of a quadrilateral =360°

120° + x° + x° + x° =360°

120 + 3x° = 360°

3x° = 360° - 120°

3x° = 240°

x° = 240/3

x° = 80°

Therefore, the angles measure 80° each.

Hope it helps!!