I believe it would have nine edges.
8
A triangle has three sides or edges.
A triangle has three edges; a rectangle has four.
A triangle consists of three corners and three edges.
There are three straight edges in a triangle.
8
6
A Triangle.
Six
A triangle has three sides or edges.
A triangle has three edges; a rectangle has four.
Three EdgesA triangle has three edges.
A triangle consists of three corners and three edges.
there are no curved edges on any triangle.
There are three straight edges in a triangle.
triangle
6 edges.