Thursday, June 10, 2010

Isoceles Triangle

Isoceles Triangle:

Introduction to triangles:Let me first brief you up about Triangles in general,a triangle is a three sided figure,and an isosceles triangle has two congruent faces called legs and a third side called the base. The vertex angle is the angle included by the legs. The other two angles are called base angles. The base angles are congruent.
Isosceles Triangle:

The easiest way to learn about the isosceles triangle is to first identify its properties.
  • The unequal face of an isoceles triangle is usually referred to as the 'base' of the triangle.
  • The base angles (congruent) of an isosceles triangle are always equal. In the figure above, the angles
  • When the 3rd angle is a right angle, it is called a "right isoceles triangle".
  • The altitude is a perpendicular length from the base to the topmost vertex.


All isoceles triangles:
- Have angles that add up to 180 degrees
- Have two equivalent sides. The irregular side is called the base.
- Have alike base angles.
- Have areas and perimeters that can be establish using the formulas Area=1/2 X (base X height) and Perimeter=side+side+side
A shape triangle with a right angle is called a right isoceles triangle. Also, all equilateral triangles are isoceles triangles, but not all isoceles triangles are right triangles.
Hope you like the above example of Isoceles Triangle.Please leave your comments, if you have any doubts.

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