Classifying Triangles

A triangle is a three-sided polygon.

1. Equilateral Triangle: All sides are equal. 2. Isosceles Triangle: Two sides are equal. 3. Scalene Triangle: All sides are different.

1. Acute Triangle: All angles are less than 90 degrees. 2. Right Triangle: One angle is exactly 90 degrees. 3. Obtuse Triangle: One angle is greater than 90 degrees.

An equilateral triangle has all three sides equal and all angles equal to 60 degrees.

An isosceles triangle has at least two sides that are equal in length.

A scalene triangle has all sides of different lengths.

A right triangle has one angle that measures exactly 90 degrees.

An acute triangle has all angles measuring less than 90 degrees.

An obtuse triangle has one angle that measures more than 90 degrees.

It is classified as an isosceles triangle.