Question

3.
The sides AB, BC, CA of a triangle ABC have a,b
and c interior points excluding vertices on them
respectively. The number of triangles that can be
contructed using these interior points as vertices is
(1) ab + bc + ca
(2) Eab(a + b - 2)
(3) Lab(a + b)
(4) a+b+cz - lecz + bcz + °C)​

Answer 1

Answer:

4 is answer....may it help u dear