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Question

From the following figure, find the value of AOD and BOD.

A
AOD = 138° and BOD = 42°
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B
AOD = 42° and BOD = 138°
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C
AOD = 120° and BOD = 60°
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D
AOD = 130° and BOD = 50°
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Solution

The correct option is A AOD = 138° and BOD = 42°

Given, COA = 42°.

AOD + COA = 180° (Linear Pair)
AOD + 42° = 180°
AOD = 180° - 42° = 138°
Hence, AOD = 138°.

COA = BOD = 42° (Vertically Opposite angles)

Thus, AOD = 138° and BOD = 42°.

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