Try an example.

Refer to the figure as you work through this construction:

**Open your compass to any radius***r*, and construct arc (*K*,*r*) intersecting the two sides of angle*K*at*A*and*B.***Use any radius**Note that you must choose a radius*s*to construct arc (*A*,*s*) and arc (*B*,*s*) that intersect each other at point*Z.*that's long enough for the two arcs to intersect.*s***Draw line***KZ*and you're done.