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Question

Which of the following statements is not true about the figure given below?


A

DBC = 180

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B

ABD = 60

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C

CBA and DBA are supplementary.

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D

CBA = 90

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Solution

The correct option is B

ABD = 60


Here ABD and ABC are supplementary, since they lie on a straight line.
Hence DBC = 180
Given, ABC = 90
ABD = 180 - ABC = 180 - 90 = 90


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