Angle Vocabulary

obtuse angle

• a line of indefinite length extending from an end point in one direction
• any angle between 90 and 180 degrees
• a tool used to measure angles
• lines at an angle

Tags

CCSS.4.G.A.1

acute angle

• an instrument used to measure angles
• any angle between 90 and 180 degrees
• something pretty
• an angle measuring less than 90 degrees

Tags

CCSS.4.G.A.1

straight angle

• not curley
• an angle measuring less than 90 degrees
• an angle that is 90 degrees
• an angle that measures 180 degrees

Tags

CCSS.4.G.A.1

complementary angles

• an angle measuring between 90° and 0°
• formed by two rays with a common endpoint
• the sum of two angles equaling 90°
• two angles that have the same angle measure

Tags

CCSS.7.G.B.5

supplementary angles

• an angle measuring between 90° and 180°
• the sum of two angles equals 180°
• two angles that share a vertex and a side
• an angle that measures 90°

Tags

CCSS.7.G.B.5

What are exterior congruent angles on opposite sides of the transversal?

• alternate interior
• alternate exterior
• supplementary
• vertical

Tags

CCSS.8.G.A.5

adjacent angle

• two angles that share a vertex and a side
• formed by two rays with a common endpoint
• two angles that have the same angle measure
• formed by two intersecting lines and are opposite of each other

Tags

CCSS.7.G.B.5

vertical angle

• an angle that measures 90°
• formed by two intersecting lines and are opposite of each other
• formed by two rays with a common endpoint
• two angles that have the same angle measure

Tags

CCSS.7.G.B.5

right angle

• an angle measuring between 90° and 0°
• an angle that measures 90°
• two angles that share a vertex and a side
• the point of intersection of two sides of an angle

Tags

CCSS.4.G.A.1

Angles inside a pair of lines on the opposite sides of a transversal and are congruent are called _____.

• Vertical angles
• Corresponding Angles
• Supplementary Angles
• Alternate Interior Angles

Tags

CCSS.8.G.A.5