Answers

2015-01-04T16:52:56+05:30
Since all angles are in Ap Let the four angles be a,a+x,a+2x,a+3x According to the question, 4×a=a+3x 3a=3x a=x Therefore the four angles become a,2a,3a,4a A/q,10a=360 a=36 2a=72 3a=108 4a=144
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