no
No. a equilateral triangle does not have perpendicular sides.
No. a equilateral triangle does not have perpendicular sides.
Equilateral parallelograms.
An equilateral triangle doesn't have any perpendicular sides on it.
Triangles have 0 diagonals.
None. Triangles - whether equilateral or not - do not have diagonals
Equilateral triangles have 3 perpendicular bisectors
no a equilateral triangle does not have any perpendicular sides because the lines are joined together.
No
No but a right angle triangle does
yes. They are. because it is both equilateral and equiangular, the diagonals are at the same angles to the sides (45 degrees) and that angle makes them perpendicular.
There are no 'diagonals' in a triangle. Each vertex is connected to both of the other vertices, by the sides.