Question

question 9 of 49
what is always true about a linear pair?
a. the sum of angle measures is 180°.
b. the sum of angle measures is 360°.
c. the sum of angle measures is 90°.
d. each angle measure is the same.

Explanation:

A linear - pair of angles is formed when two lines intersect. By definition, the sum of the measures of angles in a linear pair is 180°.

Answer:

A. The sum of angle measures is 180°.