How many diagonals does a convex hexagon have?
Answer and explanation
Correct answer: A. 9 diagonals
- Step 1: The formula for the number of diagonals is n(n - 3)/2.
- Step 2: For n = 6 this gives 6 x 3 / 2 = 9.
Answer
9 diagonals.
Why not the others: 12 counts each diagonal twice and 15 counts the sides as well as the diagonals.
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