NOTICE: PLEASE READ THE INSTRUCTIONS When you drag the protractor do not drag it off screen and click an arrow key unless you need to. It's better to make a smaller triangle. You may need to hold the protractor with your mouse firmly. Please play on turbowarp. https://turbowarp.org/775142936 Click three points to create a triangle. After that use the provided protractor to measure angles. Turn the protractor 1 degree by clicking the arrow keys. This is not mobile friendly, but I'm working on it. All triangles should add up to 180 degrees Do you not understand how to use a protractor to measure angles? Watch the videos below. https://www.youtube.com/watch?v=LPc0imoebzI do you still not understand? watch the video below: https://www.youtube.com/watch?v=_erF7VM5-zIa
Mathisfun.com for the protractor rest is by me I made this because of math class.