(b) Given, that there are 20 distinct points on a circle and we have to draw a straight line by joining any two of these points. Hence, number of straight lines =20C2=
20×19
2
=190 ∴ Statement (1) is wrong. and Numberof triangle =20C3=
20×19×18
1×2×3
=1140 ∴ Statement (2) is correct. Hence, option (b) is correct.