Isosceles trapezium

Isosceles trapezoid ADMR (AD ∥ MR) has an angle of 30° at vertex A.
Calculate the size of the angle at vertex M.

Final Answer:

RMD =  150 °

Step-by-step explanation:

α=30   RMD=RMD=180α=18030=150



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geometryplanimetricsUnits of physical quantitiesGrade of the word problem

 
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