4.6 Practice 1: Angles

What is the definition of angle?

• a series of points that extend in two opposite directions

• part of a line with one end point and one side that doesn’t end

• part of a line with two endpoints

• Made up of two rays and a shared vertex

What is the definition of acute angles?

• Angles that measure less than 90⁰

• Angles that measures exactly 90⁰

• Angles that measure more than 90⁰

• Angles that measures exactly 180⁰

What is the definition of right angles?

• Angles that measure less than 90⁰

• Angles that measures exactly 90⁰

• Angles that measure more than 90⁰

• Angles that measures exactly 180⁰

What is the definition of obtuse angles?

• Angles that measure less than 90⁰

• Angles that measures exactly 90⁰

• Angles that measure more than 90⁰

• Angles that measures exactly 180⁰

What is the definition of straight angles?

• Angles that measure less than 90⁰

• Angles that measures exactly 90⁰

• Angles that measure more than 90⁰

• Angles that measures exactly 180⁰

What is the main use of a protractor?

• Drawing circles

• Measuring the degree of an angle

• Tracing shapes

• Spinning around on the end of your pencil

a figure formed by two line segments or rays that share the same endpoint

• angle

• acute angle

• right angle

• obtuse angle

• protractor

an angle that measures greater than 0 degrees and less than 90 degrees

• angle

• acute angle

• right angle

• obtuse angle

• protoractor

an angle that measures exactly 90 degrees

• angle

• acute angle

• obtuse angle

• right angle

• protractor

an angle that measures greater than 90 degrees and less that 180 degrees

• angle

• acute angle

• right angle

• obtuse angle

• protractor