Question

Question is in the picture
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Answer 1

all choices apply

Explanation:

Angles are "adjacent" when they share a vertex and the ray between them. Thus the following pairs are adjacent:

• 90° and ∠A
• ∠A and ∠B
• ∠B and ∠C
• ∠C and 27°
• 27° and 90°

A linear pair is an adjacent pair in which the non-common rays point in opposite directions (lie on the same line). The angles of a linear pair total 180°, so are supplementary.

These pairs of angles are supplementary:

• ∠A and ∠B
• ∠B and ∠C

Vertical angles are not adjacent, but share a vertex and have sides that are opposite rays. They are supplementary to the same angle. here, angles A and C are a vertical pair.

All of the answer choices apply.