The number of diagonals of a polygon, d, is a function of the number of sides of

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The number of diagonals of a polygon, d, is a function of the number of sides of the polygon, n, and is given by the formula d = n(n - 3) / 2.
a. Find the number of diagonals in a dodecagon (a 12-sided polygon).
b. How many sides would a polygon have if it contained 170 diagonals?
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Discovering Advanced Algebra An Investigative Approach

ISBN: 978-1559539845

1st edition

Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke

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