mat 2025 Q26X(ii)

mat · Uk Combinations & Selection
A 3-star is a collection of three distinct points, with each pair connected by a straight line segment. How many 3-stars are there in the first diagram in total? Explain your answer.
A 3-star is a collection of three distinct points, with each pair connected by a straight line segment. How many 3-stars are there in the first diagram in total? Explain your answer.