the angles of a quadrilateral are respective equal to 116, 72, 55, and X.find the value of X
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116° + 72° + 55° + X° = 360° (Sum of all angles of quadrilateral)
243° + X° = 360°
X° = 117°
243° + X° = 360°
X° = 117°
Answered by
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Answer:117
Step-by-step explanation:369-(116+72+55)=117
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