Properties of an isosceles triangle

Add all interior angles and lengths of the sides.

What do you notice about the lengths of the sides?

All sides have different lengths Two of the sides have the same length All sides have the same length

What do you notice about the angles?

All angles are different All angles are the same Two angles are the same

Which two angles are the same?

bottom left and top bottom right and top bottom left and bottom right (base angles)

Information: Properties of an isosceles triangle