Construct a Quadrilateral PLAN with PL = 4 cm LA = 6.5 cm ∠P = 90° ∠A = 110° ∠N = 85°.
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The sum of four angles of a quadrilateral is 360°.
In quadrilateral PLAN,
↪∠P + ∠L + ∠A + ∠N = 360°
↪90° + ∠L + 110° + 85° = 360°
↪285° + ∠L = 360°
↪∠L = 360° − 285° = 75°
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here is your answer.....
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