please tell all types of triangles definition and there all properties ?
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A triangle definition states that a triangle is a polygon that consists of three sides, three edges, three vertices and the sum of internal angles of a triangle equal to 180°. Depending upon the sides and angles of a triangle, we have different types of triangles, which we will discuss here. Triangle is an important concept which is taught in most of the classes like Class 7, Class 8, Class 9, Class 10 and in Class 11. We will discuss the properties of triangles here along with its definitions, types and its significance in Maths.
In the beginning, we start from understanding the shape of triangles, its types and properties, theorems based on it such as Pythagoras theorem, etc. In higher classes, we deal with trigonometry, where the right-angled triangle is the base of the concept. Let us learn here some of the fundamentals of the triangle by knowing its properties.
Types of Triangle
Based on the Sides Based on the Angles
Scalene Triangle Acute angled Triangle
Isosceles Triangle Right angle Triangle
Equilateral Triangle Obtuse-angled Triangle
So before, discussing the properties of triangles, let us discuss types of triangles given above.
Scalene Triangle: All the sides and angles are unequal.
Isosceles Triangle: It has two equal sides. Also, the angles opposite these equal sides are equal.
Equilateral Triangle: All the sides are equal and all the three angles equal to 60°.
Acute Angled Triangle: A triangle having all its angles less than 90°.
Right Angled Triangle: A triangle having one of the three angles exactly 90°.
Obtuse Angled Triangle: A triangle having one of the three angles more than 90°.
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obtuse , acute , right , isosceles , equilateral , scalene
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