21. The angles of a triangle are in A.P. whose common difference is 20 – InterviewSolution

1.	21. The angles of a triangle are in A.P. whose common difference is 20°. Find the angles.
Answer» We know that sum of angles of triangle is 180°so x+x+20+x+40= 1803x+60= 1803x= 120x= 40other angles will be40+20= 60° and 60+20° 80°

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