When two complementary angles ∠AOB&∠BOC are adjacent to each other, which of the following is correct?
A
∠AOC=180o
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B
∠AOC=90o
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C
∠AOB=90o
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D
None of the above.
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Solution
The correct option is B∠AOC=90o When measures of two complementary angles are added, it results in 90o. ∴∠AOB+∠BOC=90o
Given that these two angles ∠AOB&∠BOC are kept adjacent to each other that means both angles share common ray OB.
Hence, ∠AOC=90o
A perpendicular ray OA makes 90o with its base OC.
∴ When two complementary angles are adjacent to each other, they represent a perpendicular line with the base.