Question

Suppose you mark n points on a circle, where n is a whole number greater than 1. The number of segments you can draw that connect these points is
How many segments can you draw if you mark 8 points on the circle?

Answer 1

looks like the appropriate formula is
\[\frac{1}{2}n^2-\frac{1}{2}n\]

Answer 2

oh they gave you the formula!!

Answer 3

yes

Answer 4

\[\frac{1}{2}\times 8^2-\frac{1}{2}\times 8\]

Answer 5

\[\frac{1}{2}\times 64-4=32-4=28\]

Answer 6

28 segments then..ok thanks for explaining. :) You're so smart!

Answer 7

@satellite73