Two lines intersect, forming four angles. One of the angles measures 38^. What is the measure of an angle that forms a linear pair with the 38^ angle?

SAT Lines, angles, and triangles Practice Question 14 (Easy)

Question bank / Lines, angles, and triangles

Math · Geometry and TrigonometryEasy

Two lines intersect, forming four angles. One of the angles measures $38^\circ$ . What is the measure of an angle that forms a linear pair with the $38^\circ$ angle?

$38^\circ$

$52^\circ$

$142^\circ$

$322^\circ$

Show answer and explanation

Answer: C

Angles that form a linear pair are supplementary, so their measures sum to $180^\circ$ . The angle measures $180^\circ - 38^\circ = 142^\circ$ .

Choice A is the measure of the vertical angle, which is congruent to the $38^\circ$ angle, not supplementary to it.

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