Using knowledge gained from the angles section of this manual we can use circle theorems to calculate missing angles without the need for a protractor.
An understanding of circle theorems has many important uses, including for design and engineering work. Being able to visualise and work with angles using an understanding of the geometry of a circle allows many powerful calculations and mental plans to be made. Being able to do these mentally, without the need to use tools such as a protractor is important for design work.
Michelle Du Toit begins this inivesigation by using Mathomat shape 33, the trapezium, to draw parallel sides. She the encloses the trapezium in a triangle.
We use Mathomat in these investigations to explore the geometry of the circle. In the first activity we use Professor Tisdell's TGT to understand circle theorem
These activities involve students in accurate, elegant, geometric construction which builds confidence in geometric reasoning through proof.
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Get a glimpse of the tremendous potential for using Mathomat as an aid to teaching mathematics.
Using a series of Mathomat products and templates, learn maths and geometry with Pr. Chris Tisdell.
Purchase official Mathomat templates, booklets and teaching resources for your child or classroom.
Read through some interesting studies and research that make use of Mathomat templates.
