# Lesson Worksheet: Measuring Angles Mathematics • 4th Grade

In this worksheet, we will practice measuring angles in degrees using a protractor and estimating the sizes of angles.

Q1:

What is ? Q2:

What is measured using a protractor?

• Aangles
• Blength
• Cweight

Q3:

Which of the following statements correctly defines an angle?

• AAn angle is the figure formed by two rays with a common end point.
• BAn angle is the part of a straight line beginning at a given point and extending in one direction to a predetermined length.
• CAn angle is the part of a line that connects two points.
• DAn angle is the part of a straight line beginning at a given point and extending limitlessly in one direction.
• EAn angle is the point where two rays intersect.

Q4:

Which of these is a unit used to measure an angle?

• AGrams
• BDegrees
• CMeters
• DCentimeters

Q5:

Read off from the figure below. Q6:

Jacob and Mia are measuring angles. Which of the two is correct? • AJacob
• BMia

Q7:

Complete the following using , , or : . • A
• B
• C

Q8:

The measure of a right angle is .

Q9:

Is an angle of obtuse, acute, or a right angle?

• Aright angle
• Bobtuse
• Cacute

Q10:

Determine whether the angle shown is acute, right, or obtuse. • Aright
• Bacute
• Cobtuse