How many non - intersecting triangles can be formed by joining the vertices of a polygon with nine sides ?
a) 7
b) 11
C) 9
d) 8
PLEASE EXPLAIN HOW TO SOLVE THE ABOVE QUESTION
Answers
Answered by
2
Answer:
I think 9.................
Answered by
0
Answer:
7
Step-by-step explanation:
9-2 = 7
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