Answers

2015-12-16T14:10:27+05:30
Let angle be a supplement of a will be (180-a) acc. To question a=2(180-a)/3 solving this equation a a=72 Degree
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2015-12-17T17:26:44+05:30
Let the first angle be `x`
Then the other angle will be 2/3 of x = 2x/3
According to the Q
⇒x + 2x/3 = 180    [supplementary]
⇒(3x+2x)/3 = 180
⇒5x = 180 ×3
⇒x = 540/5
∴x= 108°
∴The required angle = 2x/3
                                 = 2(108)/3 
                                 = 216/3
                                 = 72°
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