Bisector call a beam which begins in vertex of angle and divides it into two equal parts. I.e. to carry out a bisector, it is necessary to find the middle of a corner. It to make the easiest way - by means of compasses. In this case you do not need to carry out any calculations, and the result will not depend on whether corner size is an integer.
It is required to you
- compasses, pencil, ruler.
Instruction
1. Establish a compasses needle in vertex of angle. Width of solution of compasses has to be that more, than growing dull a corner for which you carry out a bisector.
2. Postpone compasses on each side of angle on a piece of identical length. To postpone equal pieces, it is enough not to displace a needle and not to change compasses solution.
3. Having left width of solution of compasses former, establish a needle at the end of a piece on one of the parties and draw a part of a circle so that she settled down in a corner. Make the same also from the second party. At you two parts of circles which will be crossed in a corner - approximately in the middle will turn out. Parts of circles in one or two points can be crossed.
4. From vertex of angle through a point of intersection of circles draw a beam. In case at you two points of intersection of circles turned out, it has to pass through both. The received beam will also be a bisector of this corner.