1.
The only diagonal line in a right-angle triangle is the hypotenuse. So the answer is 1.
a triangle has three diagonals as well as three sides
0 they have no diagonals
Triangles have 0 diagonals.
A triangle has no diagonals
yes * * * * * No. In a polygon (a plane shape with sides which are straight lines), a diagonal is a line from one vertex to another provided it is not already a side of the polygon. In a triangle, the only lines which can join two vertices are sides of the triangle. Therefore they are not diagonals: that is, a triangle (right angled or not) cannot have diagonals.
None
4 because the diagonals bisect each other at 90 degrees
there is 2 diagonals in a triangle
That polygon is called a "triangle". It has no diagonals.
A triangle has 3 sides and no diagonals
None