A student marks 10 distinct points on a piece of paper.
The student draws a straight line connecting every point to every other point.
Work out the total number of lines drawn.
Practise OCR GCSE Maths The Product Rule for Counting with exam-style questions for Foundation and Higher tier. 68 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.