there are no curved edges on any triangle.
A triangle has three sides or edges.
there are no curves in a triangle
Three
there are three angles on an isosceles triangle
No. An isosceles right triangle is a special case. There are many right triangles which are not isosceles.
it has 0 curved edges
it has 0 curved edges
There are no curved edges on a triangular pyramid.
There are no curved edges, but it does stack.
because an isosceles triangle or any kind of triangle is 180 degrees.
Isosceles triangle have two equal angles2
In 3 dimensions, at least, a cube has no curved edges.