This is the step-by-step, printable version. If you PRINT this page, any ads will not be printed.
See also the animated version.
|After doing this||Your work should look like this|
|Start with a ray with endpoint C. The right angle will have C as its vertex.|
|1. Mark a point, not on the given line, about 6 cm in from C. Its exact location is not important. Label it D.|
|2. Set the compasses on point D and set their width to the endpoint C .|
|3. Draw an arc that crosses the given line and extends over and above the endpoint C. (If you prefer, draw a complete circle.)|
|4. Draw a diameter through D from the point where the arc crosses the given line, creating points B and A.|
|5. Draw a line from C to the endpoint A of the diameter line|
|6. Done. The angle ACB is a right angle (90 deg).|