What is the sum of the measures of two complementary angles?

The sum of the measures of two complementary angles is always $$90^\text{o}$$ .

Are vertical angles congruent?

Yes, vertical angles are always congruent (equal in measure).

What is an example of a pair of supplementary angles?

An example of supplementary angles is 110° and 70°, since $$110^\text{o} + 70^\text{o} = 180^\text{o}$$ .

What is an example of a pair of complementary angles?

An example of complementary angles is 30° and 60°, since $$30^\text{o} + 60^\text{o} = 90^\text{o}$$ .

If two angles are adjacent, what do they share?

Adjacent angles share a common side and a common vertex.

What is the relationship between vertical angles?

Vertical angles are equal in measure and are formed by the intersection of two lines.

If angle A is 59°, what is the measure of its supplementary angle?

The supplementary angle to angle A (59°) is 121°, since $$180^\text{o} - 59^\text{o} = 121^\text{o}$$ .

What do you call angles that add up to 180°?

Angles that add up to 180° are called supplementary angles.

Angle Relationships Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What are angle relationships?

Back

Angle relationships refer to the ways in which angles interact with each other, including concepts like complementary, supplementary, vertical, and adjacent angles.

2.

FLASHCARD QUESTION

Front

What are complementary angles?

Back

3.

FLASHCARD QUESTION

Front

What are supplementary angles?

Back

4.

FLASHCARD QUESTION

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent (equal in measure).

5.

FLASHCARD QUESTION

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

6.

FLASHCARD QUESTION

Front

If one angle measures 42°, what is its supplement?

Back

7.

FLASHCARD QUESTION

Front

What is the sum of the measures of two supplementary angles?

Back

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