Equilateral triangles have three congruent sides and three congruent angles
You need at least four triangles, or at least three trapeziums. Or two triangles and one trapezium.
One star has five triangles on the sides, and about three in the middle, if enough lines are drawn.
Some triangles are equilateral, but not all of them. There are three types of triangles. Triangles which have three equal sides and three equal angles are called equilateral triangles. Isosceles triangles have two equal sides and two equal angles. Scalene triangles have no equal sides and no equal angles.
There are 3 triangles in a pentagon.
Three
three
Three triangles
Three
Equilateral triangles have three congruent sides and three congruent angles
Three triangles.
There are two triangles in three verticals. This is used in math.
You need at least four triangles, or at least three trapeziums. Or two triangles and one trapezium.
There are 3 triangles in a pentagon
Three are congruent.
Three sides per triangle.
All triangles have three altitudes.