Learn to Measure Angles with Different Shapes
It only works on Google Chrome, Firefox, and Safari
This mathematical tool will help you learn Angle Measurement properly. Get a protractor if you like, and you can put it on your Computer’s screen and measure to understand. Select a different shape from the screen and hold any of the angles with the mouse pointer and move it in a direction to change the angle, measure again, and test. There are 6 different shapes: Triangle, Quadrilateral, Pentagon, Hexagon, Heptagon, and Octagon.