| Summary: | This lesson is a continuation of Combinations Part I. Questions are done with non-collinear points, polygons & diagonals, more difficult problems with cards and numbers on committees.
Also covered in this lesson are selections from the same group, dividing objects into two groups or equal size, and choosing objects first before they are arranged.
After this lesson, you will be able to:
- use the formula for a combination
- draw polygons using non-collinear points & find the number of diagonals in a polygon.
- answer questions involving cards & committees etc. with ‘at least’ and ‘at most’.
- answer questions involving selections from the same group.
- answer questions dividing objects into two groups of the same size.
- answer questions where the objects must first be selected and then arranged.
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