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From Karnataka Open Educational Resources
→Concept #2 - Properties and Theorems: Thales Theorem
# Repeat for different triangles. What do you infer?
# Repeat for different triangles. What do you infer?
==Concept #2 - Properties and Theorems: Thales Theorem ==
==Concept #2 - Types of triangles==
===Learning objectives===
===Learning objectives===
# Triangles are classified into different types depending on their measures of sides and angles.
# Based on sides they can be scalene if all sides are of different lengths, isosceles if two sides are equal and equilateral if all 3 sides are of same length.
# Based on angles, the triangles are classified as Acute angled triangle if all of its angles are acute angled, Obtuse angled if any one of its angles is obtuse, right angled if one of its angles is 90 degrees and as equiangular if all its 3 angles are equal to 60 degrees.
# An equilateral triangle is equiangular as well.
===Notes for teachers===
===Notes for teachers===
# The GeoGebra file below verifies the Thales theorem <br>
# The GeoGebra file below verifies the Thales theorem <br>
