Three lines into one [height on the bottom = angle bisector of the top corner = midline on the bottom]

Equiangular opposite sides

A triangle with two equal angles is an isosceles triangle

A triangle with two equal sides is an isosceles triangle

Triangles are congruent and equal to 60 degrees

Three sides are equal

Three lines in one

Three angles are equal

There is an isosceles triangle with an angle of 60 degrees

Three sides are equal

There are two triangles with 60 degree angles.