The value of the other angle will be 40°.
How to calculate the angle?
It should be noted that the value of the angle on a straight line equals to 180°.
In this case, the adjacent angles (two angles that share a common side and vertex) form a straight
angle and one of the angles measures 140°.
The value of the other angle will be:
= 180° - 140°
= 40°
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