Measure with a protractor practice check

Q: What will my child learn in "Measure with a protractor"?

Every protractor has a center point or hole that must be placed exactly on the vertex of the angle you are measuring. This 4th Grade Math lesson builds the skill Measure and reason about angles with a concept card and practice.

Q: What grade level is "Measure with a protractor" for?

"Measure with a protractor" is a 4th Grade Math lesson in the Angles unit, designed for students around ages 9-10.

Q: How many practice questions are in this lesson?

This lesson includes 59 practice questions with instant feedback. Guests can try a few for free, and signed-in learners get the full adaptive set that adjusts to their level.

Q: How does Sparq help with "Measure with a protractor"?

Sparq is a safe AI tutor that gives kid-friendly hints and explains Measure with a protractor step by step, helping students learn without just giving away the answer.

Q: Do I need an account to practice "Measure with a protractor"?

No account is needed to start — guests can try this 4th Grade Math lesson for free. Signing in saves progress, unlocks more practice questions, and tracks mastery.

Question 1

Look at the diagram. Where should the center point of the protractor be placed?

Accepted Answer

On the vertex of the angle

Answer

At the end of one ray

Answer

Above the angle

Answer

On the number zero

Question 2

After placing the center on the vertex, what is the next step to measure the angle correctly?

Accepted Answer

Line up one ray with the zero mark

Answer

Guess the measure

Answer

Align the vertex with the number 90

Answer

Draw a new angle

Question 3

If the first ray is at zero and the second ray points to the mark halfway between 40 and 50, what is the measure of the angle?

Accepted Answer

45 degrees

Answer

40 degrees

Answer

50 degrees

Answer

55 degrees

Question 4

A ray lines up with 0 on a protractor and the other ray crosses 70. What is the angle measure?

Accepted Answer

70 degrees

Measure with a protractor

Identifying the Protractor Center