Custom math worksheets at your fingertips
dw-Math logo

Details for problem "Angle bisector construction"

Quickname: 9432

Suitable for grades: Grade 5, Grade 6, Grade 7


Construct the bisector for a given angle using just a compass and a straightedge.



A drawing of an angle ist given. The task is to do construct its bisector in with the classic straightedge and compass construction, also known as ruler-and-compass construction. The construction follows these steps:

1. Two arcs are made on each ray of the angle with the same compass opening, which means the two points that are marked on the two rays of the angle have the same distance to the angle's vertex.

2. From each of the marked points on the angle's rays swing an arc between the rays, making sure these arcs intersect at some point.

3. Draw a line from the angle's vertex through the newly formed arc intersection. This line is the angle's bisector.

For an easier problem statement, in addition to the angle itself, other construction elements may be provided:

- a single arc on one of the angle's rays
- both arcs on the angle's rays
- two arcs, one on one of the rays and the corresponding arc that has been swung originating from the respective point on the ray
- all of the arc that have to be swung, so all left to do is to draw the bisector itself

The angle's size can be chosen to be up to 90 degress or up to 170 degrees. The size of the drawing can selected from multiple options. There will always be enough space left on the sheet to allow the full construction.

Topics: Geometry

Tags: Angles, Classical Construc, Drawing

Free worksheets and solution sheets with answers for download

Download free worksheets for this math problem here. The worksheet contains the problems only, the solutions sheet includes the answers. Just click on the respective link.

If you can not see the solution sheets for download, they may be filtered out by an ad blocker that you may have installed. If this is the case, please allow ads for this page and reload the page. The solution sheets will then reappear.

With a free initial credit, you can start creating your own math worksheets in a few minutes.

It does not cost anything to try! Register here, to create custom worksheets now!

Customization options for this problem

Possible values
Number of problems
1, 2, 3, 4, 5
Size of drawing
4cm, 6cm, 8cm, 10cm, 12cm
Given elements
none, one arc on single ray, arcs on both rays, both arcs, one side, all arcs
Max size of angle
90, 170

Similar problems

Name and direct link
angle bisectors in a triangle
Draw heights, medians, angle bisectors or perpendicular bisectors for a triangle.

Deutsche Version dieser Aufgabe
These informational pages with samples describe math problems that can be combined on custom math worksheets with solutions for home and school use.
Please visit the dw math main page for more information!
Privacy Policy and Imprint
Deutsche Seiten