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Sides and angles
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- Triangles are classified according to 2 groups i.e. sides and angles and are of six types in total. Based on their sides, the 3 triangles are classified as equilateral triangles, isosceles triangles, and scalene triangles. Based on their angles, the 3 types of triangles are listed as, acute triangle, obtuse triangle, and right-angled triangle.
www.cuemath.com/geometry/classifying-triangles/
Triangles are classified according to 2 groups i.e. sides and angles and are of six types in total. Based on their sides, the 3 triangles are classified as equilateral triangles, isosceles triangles, and scalene triangles.
- 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.
On the basis of angles, triangles are classified into the following types: Acute Triangle: When all the angles of a triangle are acute, that is, they measure less than 90°, it is called an acute-angled triangle or acute triangle. Right Triangle: When one of the angles of a triangle is 90°, it is called a right-angled triangle or right triangle.
Six Types of Triangles. Triangles can be broadly classified into two types, which are: Triangles based on the lengths of their sides; Triangles based on their interior angles; These two triangle types are explained here along with their further classifications.
- 6 min
A triangle is a polygon with three sides. They are classified based on the measure of side lengths and angle measures. Learn about each type in detail.
- A triangle is a closed, 2-dimensional shape with three sides, three angles, and three vertices. A triangle is also a polygon.
- Yes. An equilateral triangle has three equal sides, and all three interior angles are equal. Applying the angle sum property, we can say that each...
- An isosceles triangle has two equal sides, and angles opposite to these sides are equal. In an isosceles triangle, the equal angles are acute. The...
- A triangle cannot have more than one right angle. Every triangle has to follow the angle sum property, which states that the sum of the three inter...
Triangles can also be classified by their angles as follows: In an obtuse triangle, one angle has a measure greater than \(90^\circ\). In a right triangle, one angle has a measure of exactly \(90^\circ\). In an acute triangle, all three angles measure less than \(90^\circ\). In an equiangular triangle, all three angles are \(60^\circ\). Note ...
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Apr 7, 2021 · There are three triangles classified according to their angles: right, acute, and obtuse. A triangle belongs to only one category from each group. For example, a triangle can be acute and scalene, or right and isosceles.
