the angles of a triangle are in ap . the greatest angle is twice the leASt .find all the angles
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let one of the angle of triangle be a
other angle would be a+d and a+2d
given :-a+2d =2a
=>a =2d
∴sum of angle of triangle=180
=>a + a+d + a+2d =180
=>3a +3d = 180
=>3(2d) +3d =180
=>6d +3d = 180
=>9d =180
=>d=20
angles of the triangle are
a =2d =40°
a+2d =40+40=80°
a+d=40+20 =60°
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