Measure angles with a protractor

Key Notes :

🎯Line up one ray with 0°. Read the angle measurement where the other ray crosses the protractor.

Learn with an example

✈️ What is the measurement of this angle?

_________°

  • One ray is lined up with 0°. Follow the other ray to find the angle measurement.
  • This angle measures 160°.

✈️ What is the measurement of this angle?

_________°

  • One ray is lined up with 0° on the inside ring, which is the same as 180° on the outside ring. Read the angle measurement on the inner ring where the other ray crosses the protractor.
  • This angle measures 20°.

✈️ What is the measurement of this angle?

_________°

  • One ray is lined up with 0°. Follow the other ray to find the angle measurement.
  • This angle measures 170°.

Let’s practice!🖊️