What is the relationship between supplementary angles?

Two angles are supplementary if the sum of their measures is 180 degrees.

What is a vertical angle?

Angles that are opposite each other when two lines intersect; they are always equal.

What is a linear pair of angles?

A pair of adjacent angles that are formed when two lines intersect and are supplementary.

How do you classify angles based on their measures?

Angles can be classified as acute ( 90° and 180°).

What is the measure of a full rotation in degrees?

A full rotation measures 360 degrees.

What is the difference between adjacent angles and non-adjacent angles?

Adjacent angles share a common vertex and side, while non-adjacent angles do not.

What is the formula for finding the measure of an exterior angle of a triangle?

The measure of an exterior angle is equal to the sum of the measures of the two non-adjacent interior angles.

What is the significance of angle bisectors?

An angle bisector divides an angle into two equal parts.

Geometry Angles Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

2.

FLASHCARD QUESTION

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

3.

FLASHCARD QUESTION

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

4.

FLASHCARD QUESTION

Front

What is the sum of angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

5.

FLASHCARD QUESTION

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

6.

FLASHCARD QUESTION

Front

What is a reflex angle?

Back

An angle that is greater than 180 degrees but less than 360 degrees.

7.

FLASHCARD QUESTION

Front

What is the relationship between complementary angles?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

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