Which of the following statements is false?
Select one option, then click Submit.
an octagon has twenty diagonals
a hexagon has nine diagonals
a hexagon has four more diagonals than a pentagon
a pentagon has the same number of diagonals as it has sides
a quadrilateral has twice as many diagonals as it has sides
Select an option, then submit.
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Intermediate Mathematical Challenge 1999 (1999)
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