Triangle Properties After Cutting Rectangle

In geometry, understanding the properties of different shapes is essential. Let's consider two shapes: a triangle and a rectangle. A triangle has three sides, while a rectangle has four sides. Each shape has unique attributes when it comes to the number of sides and angles.
If we look specifically at a rectangle, we know that it has four right angles. Now, if we were to cut a rectangle into two identical triangles by drawing one diagonal, how many sides do the resulting triangles have?