Register to reply

Number of ways question

by physicsss
Tags: number of ways
Share this thread:
May10-06, 03:17 AM
P: 320
A circle has random points on its circumferance. How many ways can you form a quadrilateral, a triangle, and a octagon using these points?

I have no idea how to get an numerical answers for this question without using n to represent the number of points on the circle.

Phys.Org News Partner Science news on
NASA team lays plans to observe new worlds
IHEP in China has ambitions for Higgs factory
Spinach could lead to alternative energy more powerful than Popeye
May10-06, 08:24 AM
P: 213
I think using 'n' is fine...just make a correct formula such that for any n you can get a specific answer.
May13-06, 09:20 AM
P: 601
Of course you need n.
In how many ways can you choose the vertices of an r sided polygon from n points ?

Register to reply

Related Discussions
Difference between Identical , Equal , Equivalent Calculus & Beyond Homework 9
Root of n degree of the number n Calculus & Beyond Homework 15
A real number definition involving Bruijn-Newmann constant.. Linear & Abstract Algebra 6
Ways to not waste your summer ? Academic Guidance 14
Construction of number system General Math 13