The expression 3C2 represents the number of ways of:
a. choosing 2 items at a time from a set of 3. c. arranging, in order, 2 items from a set of 3.
1 b. choosing 3 items at a time from a set of 2. d arranging, in order, 3 items from a set of 2.

3c2 is a combination equation which is used to calculate the number of ways you can choose 2 items out of a total of 3 items.

The answer is:

a. choosing 2 items at a time from a set of 3

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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