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 π‘šβˆ π΅π΄πΆ?

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 π‘šβˆ π΅π΄πΆ 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 >: π‘šβˆ π΄π΅πΆπ‘šβˆ π‘‹π‘Œπ‘.

  • A=
  • B>
  • C<

Q8:

The measure of a right angle is .

Q9:

Is an angle of 140∘ obtuse, acute, or a right angle?

  • Aright angle
  • Bobtuse
  • Cacute

Q10:

Determine whether the angle shown is acute, right, or obtuse.

  • Aright
  • Bacute
  • Cobtuse

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