Because it's a triangle that has three equal sides and three equal interior angles of 60 degrees.
No
equilateral triangle
In an equilateral triangle, there are three altitudes, each of which is perpendicular to the side of the triangle it intersects. These altitudes are the lines that connect a vertex to the opposite side at a right angle. Additionally, the three medians of the triangle also intersect at the centroid, but they are not perpendicular to the sides. Therefore, the main perpendicular lines to consider are the three altitudes.
The three lines joining each vertex to the midpoint of the opposite side. They are also the medians, altitudes and perpendicular bisectors of the sides. In an equilateral triangle these are coincident.
A regular pentagon does not have parallel or perpendicular lines. Some other possibilities include, but are not limited to:a circlean ovalan equilateral triangle or any triangle that is not a right triangle.(A right angle's lines are perpendicular. Those are what make it a 90 degree angle.)
No
no a equilateral triangle does not have any perpendicular sides because the lines are joined together.
equilateral triangle
none
In an equilateral triangle, there are three altitudes, each of which is perpendicular to the side of the triangle it intersects. These altitudes are the lines that connect a vertex to the opposite side at a right angle. Additionally, the three medians of the triangle also intersect at the centroid, but they are not perpendicular to the sides. Therefore, the main perpendicular lines to consider are the three altitudes.
The three lines joining each vertex to the midpoint of the opposite side. They are also the medians, altitudes and perpendicular bisectors of the sides. In an equilateral triangle these are coincident.
A regular pentagon does not have parallel or perpendicular lines. Some other possibilities include, but are not limited to:a circlean ovalan equilateral triangle or any triangle that is not a right triangle.(A right angle's lines are perpendicular. Those are what make it a 90 degree angle.)
PERPENDICULAR
They are the lines joining each of the vertices to the mid-points of the opposite sides. In an equilateral triangle, these lines are the medians, angle bisectors, altitudes and perpendicular bisectors of the sides - all in one!
An equilateral triangle has 3 lines of symmetry.
An equilateral triangle has 3 lines of symmetry
An equilateral triangle has 3 equal sides and with 3 lines of symmetry because each of its vertices is centrally perpendicular to its opposite sides