High students in this video, let's discuss classification of triangles, not triangles, can be classified
on the basis of their sides or on the basis of angles.
Let's start with classification on the basis of sites.
There are three types of triangles on the basis of the sides of a triangle that's equilateral triangles,
isosceles triangles and scaling triangles.
Let's start with an equilateral triangle.
This is an example of an equilateral triangle.
You can see that all the sides in an equilateral triangle are equal and every angle is equal and it's
equal to 60 degrees.
So in an equilateral triangle, all the angles are equal and all the sides are equal.
All right.
Let's move on to a in a stranger.
What is an isosceles triangle?
Over here, we have an example of an isosceles triangle.
You can see that two sides are equal in the case of an isolationist triangle.
And the angles opposite the equal sides will also be equal to this angle.
Over here is opposite to this side.
And this angle over here is opposite to decide to the angles opposite two equal sides are also equal
in an isosceles triangle.
All right.
So there are two things.
Two sides are equal and two angles are equal in an isosceles triangle.
Let's move on to the next type of triangle, which is Kaylin Triangle.
In a scaling triangle, you can see that all the three sides are unequal.
So all the three measures will be different.
For example, if this X, this Y and this is said two X is not equal to Y, not equal to that.
This type of a triangle is called a scaling triangle.
So we have covered the classification of triangles on the basis of sites.
Now let's move on to classification on the basis of angles over here.
Also, we have three types of triangles.
That's acute angle triangle, right.
Angle triangle and obtuse angle triangle.
What is an acute angle triangle?
Over here?
We have an example of an acute angle triangle in an acute angle triangle.
All the angles are less than 90 degrees or all the angles are acute angles.
All right, what about the right angle triangle in the right angle triangle one angle is equal to 90
degrees.
You will just have one angle equal to 90 degrees.
And what about an obtuse angle triangle in an obtuse angle triangle?
Let's take an example over here.
You can see that one angle will be an obtuse angle.
So one angle will be an obtuse angle, which means one angle will be greater than 90 degrees.
Now, remember, in an acute angle triangle, all the angles have to be accurate angles in a right angle
triangle and an obtuse angle triangle.
Only one angle need to be right angle or an obtuse angle, respectively.