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Angle of triangle are in ap and the number of degrees in least angle is to the number of degrees in mean angle is 2:3 find angle in radian

Angle of triangle are in ap and the number of degrees in least angle is to the number of degrees in mean angle is 2:3 find angle in radian

Grade:11

1 Answers

Arun
25768 Points
2 years ago
Let angles are 
a-d, a, a+d
a-d +a + a+d = 180
3a = 180
a= 60°
Now 
a-d/a = 2/3
3a - 3d = 2a
a = 3d
Hence d = 20
Hence angles are 40° , 60° and 80°
Now you can convert them in radians

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