Let’s have a look at all these types of triangles.Ī type of triangle which has all three sides equal in length to each other is called an Equilateral triangle.įor eg. In the given below example line drawn from vertex B to the opposite side AC is the altitude of the ∆ABC.Ĭategorization of Triangles on basis of Sidesīased on sides or edges, triangles are classified into three types: There can be three exterior angles possible in a triangle and they always sum up to 360 degrees.Īltitude: The altitude or height(h) of the triangle is the perpendicular distance drawn from the base of the triangle to the opposite vertex. The given below example (θ) is the exterior angle of the ∆ABC. In the given below example, ∠A, ∠B, and ∠C or (α, β and γ) are three angles of the ∆ABC.Įxterior angles: The angle of one side that is formed with the exterior extension of the consecutive side. Interior Angles: The angles that are formed from two consecutive sides of the triangle at the vertex where they converge. In the given below example AB, BC, and CA are three sides of the ∆ABC. Sides: It is the line segment which joints two consecutive vertices of a triangle. In the given below example A, B, and C are three vertices of the ∆ABC. Vertices: It is a point where two sides meet. In case, the properties don’t hold it is impossible to construct the triangle. There is an important property known as Angle Sum Property which holds always true for the triangle to be formed. A triangle also has three interior angles. We will be learning about the categorization of triangles based on their sides. All the sides of a triangle can be either equal or different. Triangle is a three-sided polygon i.e it has three sides or edges and three vertices.
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