Algebra and Graphs
Construction and Scale Drawing
Similar Figures and lengths
Similar Figures and Area and Volume
Lines, Planes and Rotational Symmetry
Basic Angle Properties
Sum of Interior and Exterior Angles
What are Loci
Vectors, Matrices and Transformations
Are you following me on Facebook yet? Follow the link, like me on Facebook and be the first one to receive important news and updates.
How to accurately Construct an Angle Bisector using a Protractor, Compass and Ruler
Besides having to be able to accurately construct all sorts of polygons, you will also need to be able to construct Bisectors. You have to be able to construct these bisectors with a surgical precision. Like I said before, mathematicians are not only confident with numbers. They can also work neatly and accurately with various mathematical tools. Perhaps your first question now is 'What is a Bisector'? A Bisector means dividing something into two equal parts (bi means 2). So an Angle bisector means that you will divide an angle into two equal parts. If the original angle is 70 degrees, then the angle bisector will divide that angle into 2 angles of 35 degrees each. But you need to use your Compass and Ruler to construct the Angle Bisector and cannot simply use your Protractor. In the next videos I will show you step by step how to accurately Construct an Angle Bisector. You will also need these skills when you start studying Loci (click here). Make sure to leave all construction lines. do not rub them out! The construction lines are part of your answer. Good luck and have fun looking at the following two maths example questions!