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Math

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Suppose that 9 points are distributed on a plane, such that no three points are on the same line. Form a quadrilateral by selecting the vertices from these points. How many quadrilaterals are possible?with solution.

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Answer:

Answer: 126

Step-by-step explanation:

Using the formula of combination

9!/(9-4)!4!= 126

= 9x8x7x6x5!/5!x4!

Reduce by removing 5!

= 9x8x7x6/4!

= 3024/4!

= 3024/24

= 126

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