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Question

In the given figure, if CAD=150 and ABC=60, then reflex ACB=___ .


A

1 right angle

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B

2 right angles

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C

3 right angles

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D

4 right angles

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Solution

The correct option is C

3 right angles


ACB + ABC= DAC
[Exterior angle property]
ACB + 60=150 ACB=90 Reflex ACB =36090 =270 =3×90 =3 right angles


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