SAT Math Multiple Choice Practice Question 300: Answer and Explanation
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Question: 300
14. Four points lie on a circle. How many different triangles can be drawn with three of these points as vertices?
A. 4
B. 5
C. 6
D. 7
E. 8
Correct Answer: A
Explanation:
A You can draw a diagram and see that there are only four possible triangles:
If you prefer to look at it as a "combination" problem, the number of triangles is the number of ways of choosing three things from a set of four, or 
.