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Mathematics 11 Online
OpenStudy (anonymous):

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OpenStudy (vivek3461):

For an isosceles trapezoid given in figure Angle WZY and Angle ZYX (refer properties of isosceles trapezoid) So 8a-3=7a+2 Solving this we get, a=5 So Angle WZY = 8*5-3 = 37 (Option D)

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