Question
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Another table, made in the same style, has its top, in the shape of an \( n \)-sided regular polygon. The length \( \mathrm{AZ}=p \mathrm{~cm} \), where Z is at the centre of the table and A is one of the corners of the table.

Ask by Carrillo Salazar. in New Zealand
Nov 06,2024

Real Tutor Solution

Tutor-Verified Answer

Answer

The circumradius \( R \) of the regular \( n \)-sided polygon is \( p \) cm, which is the distance from the center to any vertex.

Solution

To analyze the situation described, we have a table with a top that is shaped like a regular \( n \)-sided polygon. The length \( \mathrm{AZ} = p \) cm indicates that point A is one of the vertices (corners) of the polygon, and point Z is the center of the polygon. ### Properties of a Regular \( n \)-Sided Polygon 1. **Vertices and Center**: A regular \( n \)-sided polygon has \( n \) vertices, all equidistant from the center. The distance from the center to any vertex is called the circumradius \( R \). 2. **Circumradius**: For a regular \( n \)-sided polygon, the circumradius \( R \) can be calculated using the formula: \[ R = \frac{s}{2 \sin\left(\frac{\pi}{n}\right)} \] where \( s \) is the length of each side of the polygon. 3. **Apothem**: The apothem \( a \) of the polygon, which is the distance from the center to the midpoint of a side, can be calculated as: \[ a = R \cos\left(\frac{\pi}{n}\right) \] ### Given Information - The distance from the center \( Z \) to a vertex \( A \) is given as \( AZ = p \) cm. Therefore, we have: \[ R = p \] ### Summary In this case, the circumradius \( R \) of the regular \( n \)-sided polygon is equal to \( p \) cm. This means that the distance from the center of the table to any of its corners (vertices) is \( p \) cm. If you need further calculations or specific properties related to the polygon, such as the area or perimeter, please let me know!

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Beyond the Answer

The geometry of regular polygons is fascinating, especially when it comes to calculating the area or perimeter. For an \( n \)-sided regular polygon with a circumradius \( p \) (the distance from the center to a vertex), the length of each side can be determined using the formula \( \text{side length} = 2p \sin(\frac{\pi}{n}) \). This relationship helps in crafting the dimensions if you ever need to build a table or design similar structures! When considering the surface area of an \( n \)-sided polygon, one common mistake is miscalculating the total area by not accounting for the inscribed and circumscribed circles accurately. A reliable formula for the area \( A \) of a regular polygon is \( A = \frac{1}{2} \times n \times p^2 \times \sin\left(\frac{2\pi}{n}\right) \). Always double-check your angles and dimensions to ensure your calculations hold up and your creations don’t wobble!

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