Angle Mastery Quiz for 4th Grade

Which of the following angles is an acute angle?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

Which tool is used to measure angles?

• Ruler

• Compass

• Protractor

• Calculator

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

How many degrees is a straight angle?

• The corner of a square piece of paper

• The top angle of a typical house roof

• The angle between the two hands of a clock at 10:10

• The angle formed by the open lid of a laptop at a comfortable viewing angle

What unit is used to measure angles?

• Centimeters

• Degrees

• Liters

• Kilograms

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Which of the following is the best estimate for an obtuse angle?

• The angle of a slice of pizza

• The angle between the floor and an open door

• The angle between two perpendicular lines

• The angle of a sharp pencil tip