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Mar 29, 2019 · Geometry often involves comparing and classifying shapes, line segments and angles. Triangles can be classified by 2 different attributes. A triangle may be named for its angles or for its lines. It may also be given a dual classification and classified by lines and angles.
Classification of triangles is done based on their sides and angles. In other words, the characteristics of a triangle's size and shape help in distinguishing the type of triangle. The table below shows the different types of triangles based on their angles and sides.
- Right Triangles. A right triangle has one 90° angle and a variety of often-studied topics: Pythagorean Theorem. Pythagorean Triplets. Sine, Cosine, Tangent. Pictures of Right Triangles.
- Equilateral triangle. The Equilateral triangle shown on the left has three congruent sides and three congruent angles. Each angle is 60°.
- Isosceles triangle. The Isosceles triangle shown on the left has two equal sides and two equal angles.
- Scalene Triangle. The Scalene Triangle has no congruent sides. In other words, each side must have a different length.
According to the lengths of their sides, triangles can be classified into three types which are: Scalene. Isosceles. Equilateral.
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Jan 21, 2020 · Learn how to classify the 3 types of triangles. Review the triangle sum and exterior angle theorems, and finish up with writing two column proofs.
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Feb 28, 2022 · Using Songs and Videos to Classify Triangles. Flocabulary has a fantastic music video on classifying triangles. This video walks through classifying triangles by the length of their sides and by the size of their angles.
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Oct 26, 2023 · Identify a triangle with one angle measuring \ (100^\circ\) and the remaining two angles totaling \ (80^\circ\). Answers: Acute Triangle. Equilateral Triangle. Obtuse Triangle. Triangles are categorized by side lengths (equilateral, isosceles, scalene) and angles (acute, obtuse, right).
