Infinitely many. Each triangle can be divided in two and then that triangle can be divided and so on.
Yes, Four Triangles make a rectangle.
A rectangular based pyramid would fit the given description
Ten
10080
Two right angle triangles, normally scalene triangles. However, if the rectangle is for example a square, then it would be two isosceles triangles.
Two of them
there are 4 triangles and 1 rectangle in an rectangular pyramid
2
Yes, Four Triangles make a rectangle.
6 Triangles!!
A rectangular based pyramid would fit the given description
1o triangles
4
4
Four.
5
Ten