Constructing an angle bisector
Constructing an angle bisector.
- Use a sharp pencil, ruler and compasses or protractor as specified.
- Keep the arcs and guide marks that show how the construction was made.
- Check the required lengths and angles without erasing the construction.
Example 1
Bisect the angle using a ruler and compasses.
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Example 2
Bisect the angle using a ruler and compasses.
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Your turn
Bisect the angle using a ruler and compasses.
Check answer
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
Check answer
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
Check answer
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
Check answer
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
Check answer
From the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
AnswerFrom the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
AnswerFrom the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
AnswerFrom the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
AnswerFrom the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.
Bisect the angle using a ruler and compasses.
AnswerFrom the vertex, draw one arc cutting both arms. From those two cut points draw equal-radius arcs that cross inside the angle. Join the vertex to their intersection.