What type of triangles has the sides 40,40,80?
No triangle has sides 40, 40, and 80.
The sum of the two smaller sides must be greater than the third side.
Since 40 + 40 = 80, no triangle will be formed. The two shorter sides "collapse" onto the longer side.
When two sides are of equal length, what is that triangle called? Isosceles triangle!!
