Terry Tam – Resources – GeoGebra

Terry's Maths Collections
Book
Terry Tam
What is the length of the side of equilateral triangle?
Activity
Terry Tam
Equilateral Triangle on 3 Concentric Circles
Activity
Terry Tam
Shortest-perimeter Inscribed Triangle
Activity
Terry Tam
Why same areas? (3)
Activity
Terry Tam
Why same areas? (2)
Activity
Terry Tam
Why same areas?
Activity
Terry Tam
Intersecting Chords Theorem and Secant-Tangent Theorem
Activity
Terry Tam
Why ratio difference is the same?
Activity
Terry Tam
Why 6 points are concyclic?
Activity
Terry Tam
Why parallelogram is always formed?
Activity
Terry Tam
Napoleon Equilateral Triangles
Activity
Terry Tam
Ptolemy Theorem
Activity
Terry Tam
Obtaining Fractions via Folding Paper
Activity
Terry Tam
Incircle and Excircles
Activity
Terry Tam
Inner/Outer Triangles
Activity
Terry Tam
Viviani's Theorem
Activity
Terry Tam
QM-AM-GM-HM Inequality
Activity
Terry Tam
How to copy a line segment with a collapsing compass?
Activity
Terry Tam
All about Pythagoras theorem...
Activity
Terry Tam
Why always a circle tangent?
Activity
Terry Tam
Where am I?
Activity
Terry Tam
Morley Equilateral Triangles
Activity
Terry Tam
Equilateral triangles on a triangle
Activity
Terry Tam