Formula for combinations:
(n!)/(r!(n-r)!)
For you, this is:
10!/(5!(10-5)!) = 10!/5!5! = (10•9•8•7•6•5•4•3•2)/(5•4•3•2)(5•4•3•2) = (10•9•8•7•6)/(5•4•3•2) = 30240/120=252 different ways.
Three I think. Might be wrong
Answer:
4/8, 8/16, 2/4 any of those
Step-by-step explanation:
All rectangles<span> are parallelograms. </span>
