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Which statement is true? Seven diagonals can be drawn from each vertex of a nonagon. Two diagonals can be drawn from each vertex of a quadrilateral. Two diagonals can be drawn from each vertex of a pentagon.

Ask by Bradley Hampton. in the United States
Jan 24,2025

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The third statement is true: Two diagonals can be drawn from each vertex of a pentagon.

Solución

Let's analyze each statement based on the properties of polygons and their diagonals. 1. **Seven diagonals from each vertex of a nonagon:** - A **nonagon** is a 9-sided polygon. - The number of diagonals from each vertex of an *n*-gon is given by **n - 3** (since you cannot draw a diagonal to itself or its two adjacent vertices). - For a nonagon: 9 - 3 = **6 diagonals** per vertex. - **This statement is false.** 2. **Two diagonals from each vertex of a quadrilateral:** - A **quadrilateral** is a 4-sided polygon. - Using the formula: 4 - 3 = **1 diagonal** per vertex. - **This statement is false.** 3. **Two diagonals from each vertex of a pentagon:** - A **pentagon** is a 5-sided polygon. - Using the formula: 5 - 3 = **2 diagonals** per vertex. - **This statement is true.** **Answer:** Only the third statement about the pentagon is true.

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Extra Insights

Did you know that in a nonagon, which has nine sides, you can actually draw a total of 20 diagonals from each vertex? It seems a bit complex, but here's a fun tip: The formula for finding the number of diagonals in a polygon is \(\frac{n(n-3)}{2}\), where ‘n’ is the number of sides. So for a nonagon, it's \(\frac{9(9-3)}{2} = 20\). When it comes to quadrilaterals, the statement is indeed false. In reality, from each vertex of a quadrilateral, you can draw one diagonal. Therefore, for a quadrilateral, there are exactly 2 diagonals in total. But don’t fret! A pentagon allows for more exciting connections with 5 diagonals in total, making geometry a lot more fun!

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