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The number of degrees in 2 right angles ...

The number of degrees in 2 right angles is (a) `90^0` (b) `180^0` (c) `270^0` (d) `360^0`

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  15. An angle of measure 360^0 is called (a)a zero angle (b) a straight ...

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  16. An angle of measure 140^@ is

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  17. A reflex angle measures :

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  19. The number of degrees in 3 right angles is

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