#### How do we classify triangles:
Triangles are regular polygons with three sides and three angles. They are classified based on their angles and sides. The measurements of these angles and sides may be different or the same size, there only maybe one distinctive angle; any two angles or sides may be of equal measurements.
These shapes has different type of shapes and sizes. We differentiate them by their sides or angles.
**Sides - ** An accurate measurement of triangle sides helps us to classify triangles. You will need to mark triangle sides that are congruent. Three sides of the scalene triangle have different measurements. But they don't have congruent sides. In an isosceles triangle, two sides have exactly the same measurement. All three sides of equilateral triangle have the same measurement. All equilateral triangles are isosceles triangle that has two congruent sides of the triangle.
**Angles - ** We can classify triangles by their angles and it has different types. All three angles of an acute triangle are less than 90 degrees. We need one right angle and two acute angles to make right angles. Obtuse versions have angles that are greater than 90 degrees and two acute angles. We need two congruent angles.
Based on their sides, triangles are classified as the following three types:
**Equilateral** - As the name implies, equilateral are those that have all the three sides of the same measurement.
**Isosceles** - Isosceles are those shapes that two sides of equal measurement
**Scalene** -Scalenes are those that have all three sides of different measurements.
Based on their angles, triangles are classified as the following four types:
**Right** -Right are those that have at least one angle of 90 degrees.
**Obtuse ** -Obtuse are those that have an angle that measures more than 90 degrees but less than 180 degrees.
**Acute** -Acute are those that have all the angles of less than 90 degrees.
**Equiangular** -Equiangulars are those that have all its angles of the same measurement.

We explore the six main classifications of triangles. We can classify them by the angles that exist with a triangle. An acute has three acute angles. An obtuse has one obtuse angle. A right has one right angle. We can also classify them by their sides. In an equilateral it has all equal side lengths. If a triangle has two equal sides (in length) it referred to as isosceles. If none of the sides are equal length it is called a scalene triangle. These worksheets explains how to classify triangles as isosceles, scalene, equilateral, right, acute, or obtuse. Students may be given the measurements of the sides or angles, or may have to measure them for themselves.