Isosceles triangle
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A three sided polygon in which two sides are equal in length and two angles are equal in size. Two sides have the same length as each other. The other side may be shorter or longer in length than the other two sides.
Two sides have the same length as each other. The other side may be shorter or longer in length than the other two sides.
The length of each side is longer than the sum of the lengths of the other two sides.
The Side-Side-Side (SSS) postulate states that if all three sides of one triangle are congruent to the corresponding sides of another triangle, then the two triangles are congruent. In other words, if the lengths of the three sides of one triangle are equal to the lengths of the corresponding three sides of another triangle, then the two triangles are congruent.
The triangle inequality theory means that the two short sides of a triangle has to be greater when added up,than the longer side. Ex) 2+2=4(for the two smaller sides) The longer side being 2,so the other two sides are greater.Then can also it be a trinagle.