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Subject :IMO    Class : Class 7

If ∠AOD = x + 2° and ∠AOC = 2x + 4° in the given figure, then ∠AOD measures


A30°
B60°
C105°
DNone of these


Ans 1:

Class : Class 7
Angle AOD = x 2 and AOC = 2x 4. Then according to supplementary angles sum property (which is 180). Then x 2 2x 4=180 or 3x 6=180Or 3x=174 or x=58 Then AOD is x 2 or 58 2 which is 60 degrees hence option b Is correct.

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