Is the sentence true or false?

In a triangle, the three angles always add to 180°.

Identify type of triangle:

Is the sentence true or false?

A triangle has three sides and three angles.

A shape with three sides is called________.

Is the sentence true or false?

In a triangle, there are four sides.

This shape is:

Identify type of triangle:

Identify type of triangle:

Is the sentence true or false?

In a triangle, there are three vertex.

 Find perimeter of given triangle.