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In the diagram below ABCD is mapped onto JKLM after a rotation.

 Apr 23, 2020
 #1
avatar+23526 
+1

angle A = angle J      86

         B=K                 105

         D = M                44                

         C = L 

 

86 + 105 + 44 = 235o     All of the angles (of a quadrilateral)  must sum to 360    360 - 235 = 125o  = C = L

 Apr 23, 2020
edited by ElectricPavlov  Apr 23, 2020

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