one angle of a triangle is 120° and other two angles are in the ratio 1 : 2. Find the angles
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angle1 =120
angle 2 :angle3 =1:2
so 1x+2x=60
x=20
angle 2 =1x=1*20=20
angle3= 2x=2*20=40
angle 2 :angle3 =1:2
so 1x+2x=60
x=20
angle 2 =1x=1*20=20
angle3= 2x=2*20=40
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120°+1x+2x is 180°( Sum of all angles of a triangle is 180°)
180°-120°
That is 60°.
3x is 60°
Value of x is 60/3
That is 20
Second angle is of 20°
Third angle is of 2×20 that is of 40°.
180°-120°
That is 60°.
3x is 60°
Value of x is 60/3
That is 20
Second angle is of 20°
Third angle is of 2×20 that is of 40°.
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