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HOW TO FIND X?
LET US SEE,
3x+4x+40° = 180° (Angle sum property)
7x+40° = 180°
7x = 180°-40°
7x = 140°
x = 140°/7
x = 20°
The angles are....
4x = 4(20°) = 80°
3x = 3(20°) = 60°
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