Draw the rough sketch of the following triangle.

A scalene right-angled triangle.

Draw the rough sketch of the following triangle.

An obtuse-angled isosceles triangle.

Draw the rough sketch of the following triangle.

A scalene acute-angled triangle.

Draw the rough sketch of the following triangle.

An acute-angled isosceles triangle. 

If you are given sticks of equal length, can you make a triangle with $3$ sticks? 

If you are given sticks of equal length, can you make a triangle with $4$ sticks?

If you are given sticks of equal length, can you make a triangle with $5$ sticks?

Is it possible to have an obtuse-angled triangle scalene triangle?

A triangle can have two right angles.