Triangle and its properties

Types of triangles review
Angle sum property of a triangle
Two special triangles: equilateral and isosceles
Sum of lengths of two sides of a triangle
Right angled triangles and Pythagoras property
Pythagorean theorem proofs
Unit test
10 questions

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About this unit
A triangle is a simple closed curve made of three line segments. It has three vertices, three sides and three angles.