the measure of three angles of a quadrilateralare 80, 50, 30 find the fourth angle
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Sum of all interior angles of a quadrilateral is 360°.
Therefore, the fourth angle is 200°.
Therefore, the fourth angle is 200°.
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Answer:
Step-by-step explanation:
In a quadrilateral ∠A+∠B+∠C+∠D = 360°
∠A = 80° , ∠B = 50° , ∠C = 30° , ∠D = ?
∠D = 360 - (80 + 50 + 30)
∠D = 360 - 160
∠D = 200°
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