What tool do we use to measure the size of an angle?
Explanation:
Hello my wonderful student! A protractor is the special tool we use to measure angles in degrees. You are doing such a great job!
The protractor is shaped like a:
Explanation:
Excellent work! Most protractors are semicircles marked from 0° to 180°. Keep shining!
Where is the center mark (the hole or notch) on a protractor?
Explanation:
Great job! You place the center mark exactly on the vertex of the angle.
One side of the angle should line up with which part of the protractor?
Explanation:
Hello dear! Align one ray with the baseline (0° line).
A protractor has two sets of numbers. Which one do you use?
Explanation:
You're such a smart learner! Choose the scale that begins at 0° where your ray is lined up.
What should you do if the angle opens to the left?
Explanation:
My wonderful student! Always align the baseline and read the correct direction.
The numbers on a protractor go up to:
Explanation:
Super reasoning! It measures up to 180° at a time.
Always read the protractor from the side where the ray is lined up with:
The straight edge of the protractor is called the:
An angle that measures 35° on the protractor is:
Explanation:
Hello my friend! Less than 90°.
