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|
We start with two line segments AB and CD that define the lengths of the legs and the base of the triangle.
|1. Draw a point P that will become one end of the base of the triangle.|
|2. Place the point of the compasses on the point C and adjust the compasses' width to the desired length CD of the base of the finished triangle|
|3. With the compasses' point on P, make an arc.|
|4. Pick a point R anywhere on the arc. This will become the other end of the base of the triangle.|
|5. Draw the base line PR.|
|6. With the compasses' point on B, set its width to the desired side length - AB|
|7. Without changing the compasses, make two intersecting arcs - one from P, the other from R to define the third vertex, Q, of the triangle.|
|8. Draw the two side lines PQ and RQ|
|9. Done. The triangle PQR is an isosceles triangle.|