Discover how to measure angles using a protractor with this Year 5 article from BBC Bitesize. ... Here are some more examples of acute angles. Back to top. Example 2. What does this angle measure?

Adjacent angles are one of the earliest and most important concepts to learn in basic geometry, as they have applications in further subjects like trigonometry, physics, and engineering.

This semicircular paper protractor appears to be an example of the contact-goniometer awarded patent number 655,004 on July 31, 1900. It is printed on a white rectangular card. It is divided by ...

Discover how to measure angles using a protractor with this Year 5 article from BBC Bitesize. ... Here are some more examples of acute angles. Back to top. Example 2. What does this angle measure?