Angle Relationships

What characteristic defines adjacent angles?

• They add up to 90 degrees.

• They are across from each other.

• They share a common side.

• They add up to 180 degrees.

If two angles are vertical angles, what is true about their measures?

• Their sum is 90 degrees.

• They are always different.

• Their sum is 180 degrees.

• They are congruent.

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What is the sum of two complementary angles?

• 180 degrees

• 90 degrees

• 360 degrees

• They are equal.

What is the sum of two supplementary angles?

• 90 degrees

• 180 degrees

• 360 degrees

• They are congruent.