Drawing angles with a protractor
The question
Draw angle ABC = 25°, with C above BA.
Draw an angle
How it works.
readvsset
origin on B+zero on BA
25°not155°
mark→draw→arc
- 01
This time you set the angle yourself, starting from the ray BA.
- 02
Origin on B, zero line along the given ray BA. If either is off, the whole angle is off.
- 03
Count from the zero that sits on BA. The other scale would give 155° instead.
- 04
Mark the degree, take the protractor away, and draw BC through the mark with a straightedge. Mark the angle with a small arc.