Three
A triangle has three sides or edges.
there are no curved edges on any triangle.
There are three straight edges in a triangle.
An isosceles triangle consist of 3 straight lines 2 of which are equal in length
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.
because an isosceles triangle or any kind of triangle is 180 degrees.
Isosceles triangle have two equal angles2
A flat (2D) shape triangle has 3 straight edges. A triangular pyramid has 6 straight edges. A square pyramid has 8 straight edges. (Note, some vertical edges have already been counted as you move from one face to the next.)
An isosceles triangle has rotational symmetry of order 1.
An isosceles triangle has only 1 line of symmetry.
In an isosceles triangle, two of the angles are the same.