In ∆ABC , angle A=(3x-5)°, angle B(2x+15)° and angle C=(4x+35)°. Find the measures of each angle of the trian
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According to Sum Angle property:
A + B + C = 180°
(3x-5) + (2x +15) +(4x +35) =180°
3x -5 +2x +15 +4x +35 = 180°
9x +45 = 180
X + 5 = 20
X = 15
Angle A = 3x - 5
= 3×15-5
= 40°
Angle B = 2x +15
= 2×15+15
= 45°
Angle C = 4x + 35
= 4×15+35
= 95°
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