This is the step-by-step, printable version. If you this page, any ads will not be printed.
See also the animated version.
| After doing this | Your work should look like this |
|---|---|
| 1. Draw a line segment which will become one side of the angle. (Skip this step if you are given this line.) The exact length is not important. Label it PQ. P will be the angle's vertex. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| 2. Set the compasses on P, and set its width to any convenient setting. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| 3. Draw an arc across PQ and up over above the point P. Label the point where it crosses PQ as point S. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| 4. Without changing the compasses' width, move the compasses to the point S. Draw a broad arc that crosses the first one and goes well to the right. Label the point where the two arcs cross as point T. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| 5. Without changing the compasses' width, move the compasses to the point T, and draw an arc across the previous arc, creating point R. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| 6. Draw a line from P to R. | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
| Done. The angle QPR has a measure of 30° | [画像:Geometry construction with compass and straightedge or ruler or ruler] |
