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Mathematics / Triangle

Mathematics / Triangle

A triangle is one of the basic shapes of geometry. It is a polygon with 3 sides and 3 vertices/corners.

Two triangles are said to be congruent if their respective sides and angles are equal.

In order to prove that two triangles are congruent, it is sufficient to prove either of the following conditions:

  • SSS(Side-Side-Side) - 3 sides are respectively equal
  • SAS(Side-Angle-Side) - 2 sides and the included angle are respectively equal
  • ASA(Angle-Side-Angle) - 2 angles and the included side are respectively equal
  • RHS(Right angle-Hypotenuse-Side) - For right angled triangles, Hypotenuse and one side are respectively equal

Exercises
Lessons
Topics
Exercises
Lessons
Topics
  • Triangle and its Properties

    • Questions: 10

    Congruence of Triangles

    • Questions: 10
    • Triangle
    • Types of Triangles
    • Isosceles Triangle
    • Pythagoras theorem
    • Properties of Triangles
    • Exterior Angle Property of a Triangle
    • Conditions of Congruence for Different Shapes
    • Conditions for Congruence of Two Triangles
    • Triangles - Similarity
    • Area of Similar Triangles
  • Pythagoras Theorem

    A lesson on Pythagoras Theorem

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