Understanding Angles and Protractors

What tool is used to measure angles?

• Scale

• Compass

• Protractor

• Ruler

How many parts is a right angle divided into?

• 45

• 180

• 60

• 90

What is the sum of two right angles called?

• Acute angle

• Reflex angle

• Obtuse angle

• Straight angle

Which of the following is NOT a convex angle?

• Acute angle

• Reflex angle

• Obtuse angle

• Right angle

Where should the center of the protractor be placed when measuring an angle?

• On the side

• On the base

• On the vertex

• On the arc

What is the length of an angle that measures 35 degrees?

• 35 degrees

• 35 centimeters

• 35 units

• 35 radians

What is the angle between the clock hands at 3 o'clock?

• 45 degrees

• 60 degrees

• 90 degrees

• 180 degrees

What type of angle is formed by the clock hands at 6 o'clock?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

What type of angle is formed by the clock hands at 9:55?

• Obtuse angle

• Straight angle

• Right angle

• Acute angle

What is the main purpose of a protractor?

• To measure length

• To measure angles

• To draw circles

• To draw lines