Question

On a circle there are $10$ points each of which is connected with each other with a straight line. How many triangles will be formed which lies completely inside the circle.

• A. $120$
• B. $210$
• C. $215$
• D. $90$

Answer 1

The correct option is A $120$

10 points are given.

From three non collinear points one triangle is formed , None of them are collinear from the given 10 points.