Answers

2014-08-24T23:46:55+05:30
The sum of two adjacent angle of a parallelogram is 180'
so, the required angle is 180'-165' =15'
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2014-08-25T00:55:17+05:30
A + B=180(cointerior anles)
⇒165+B=180
⇒b=15°
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