Classification of Triangles

An obtuse-angled triangle can be

A triangle can have two right angles.

A triangle can have two obtuse angles.

In the given figure, $AB=BC$ and $AD=BD=DC$. The number of isosceles triangles in the figure is

Can an angle of an obtuse-angled triangle measure $1°$?

Can a triangle have side of measure $3$ cm, $4$ cm and $7$ cm ? Give reasons.

A triangle in which all the sides are equal is known as an _____ triangle.

True or False

An obtuse right-angled triangle does not exist.

A scalene triangle cannot be:

All isosceles triangles are obtuse.

Every right triangle is scalene.

A triangle having one of its angle as right angle is known as a _____ angled triangle. 

A triangle having all its angles less than a right angle is known as an _____ triangle.

A triangle having one of its angles more than a right angle is known as an _____triangle.

What is the difference between triangle and triangular region?

In the following figure, find the angles of the triangle. Now classify this triangle on the basis of its angles.

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In the following figure, find the angles of the triangle. Now classify this triangle on the basis of its angles.

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In the following figure, find the angles of the triangle. Now classify this triangle on the basis of its angles.

In the following figure, find the length of the sides of the triangle. Now classify this triangle on the basis of their sides.

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In the following figure, find the length of the sides of the triangle. Now classify this triangle on the basis of their sides.

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