Portable Angle Finder Ruler Digital Meter Protractor

The angle you want to draw is how many degrees, just point at the scale of how many degrees on the protractor, and then draw a ray through the point you just drew with the endpoint of the ray as the endpoint. Also, when you click a point, pay attention to whether the position of your zero mark is in the outer circle or the inner circle.

It should be noted that the protractor is divided into the outer circle and the inner circle. When the zero scale line is in the inner circle, the degree of the inner circle should be read. When the outer circle, the degree of the outer circle can be read. The protractor can not only measure the angle, but also draw any angle. Straight lines, parallel lines, straight lines and parallel lines are not mentioned. The ruler can also be completed. Let's talk about how to use the protractor to draw an angle of a specified angle, This is a function that the ruler does not have (except for special angles).