On this free body diagram, how am I able to see that the two angles $\alpha$ are equivalent?
I have read about transversals, but I still can't see on this diagram.
On this free body diagram, how am I able to see that the two angles $\alpha$ are equivalent?
I have read about transversals, but I still can't see on this diagram.
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If the two sides of an angle are perpendicular to the sides of another angle, then the angles are either equal or supplementary.