There are 10 points on a circle

There are 10 points on a circle. A hexagon can be formed by linking 7 of the 10 points. How many such hexagons are possible?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #47626