Angle Vocabulary

An angle that measures less than 90°

• Acute
• Obtuse
• Right
• Straight

This is what kind of angle?

• right
• acute
• obtuse
• straight

Name this triangle.

• acute triangle
• right triangle
• straight triangle
• obtuse triangle

What is an "Acute" Angle?

• Angle that measures 180
• An Angle that measures 90
• An angle that measures more than 90
• An angle that measures less than 90

Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight

What is an example of a pair of complementary angles?

• 13° and 45°
• 10° and 170°
• 81° and 9°
• 90° and 3°

What kind of angles are shown?

• complementary
• supplementary
• adjacent
• corresponding

Find the missing angle.

• 60°
• 70°
• 50°
• 140

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect