Question

complementary and supplementary angles
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figure lmno is a parallelogram.
angles l and m are supplementary. what is the sum of their measures?
the sum of the measures of angles l and m is ______°.

Explanation:

Step1: Recall supplementary angles definition

By definition, supplementary angles are two angles whose measures add up to $180^\circ$.

Step2: Apply definition to the problem

The question states angles L and M are supplementary, so their sum follows the definition.

Answer:

$180$