If two angles add up to 180 degrees, then they are supplementary. we conclude that since angles a and b add up to 180 degrees, that they are supplementary. which law or property does this example illustrate?
a. law of syllogism
b. law of detachment
c. transitive property
d. symmetric property

The best and most correct answer among the choices provided by your question is the third choice or letter C.

Transitive Property of Equality. The following property: If a = b and b = c, then a = c. One of the equivalence properties of equality. 

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