6. A regular hexagon whose sides are 16 cm is inscribed in a circle. Find the area inside the circle and outside the hexagon.

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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**Problem 6: Calculating the Area within a Circle but outside an Inscribed Regular Hexagon**

Given a regular hexagon with side lengths of 16 cm, inscribed in a circle, the task is to determine the area enclosed by the circle but lying outside the hexagon. In order to solve this problem, follow these steps:

1. **Calculate the Radius of the Circumscribed Circle:**
   - For a regular hexagon inscribed in a circle, the radius of the circle is equal to the length of the side of the hexagon. Therefore, the radius \(r\) of the circle is 16 cm.

2. **Find the Area of the Circle:**
   - The formula for the area of a circle is \(A = \pi r^2\).
   - Substitute the value of \(r\) to get the area: 
     \[
     A = \pi \times (16)^2 = 256\pi \text{ cm}^2
     \]

3. **Calculate the Area of the Regular Hexagon:**
   - The formula for the area of a regular hexagon with side length \(s\) is \(\frac{3\sqrt{3}}{2} s^2\).
   - Substitute the value of \(s\) to find the area:
     \[
     A_{\text{hexagon}} = \frac{3\sqrt{3}}{2} \times (16)^2 = 384\sqrt{3} \text{ cm}^2
     \]

4. **Determine the Area between the Circle and the Hexagon:**
   - Subtract the area of the hexagon from the area of the circle:
     \[
     A_{\text{region}} = 256\pi - 384\sqrt{3} \text{ cm}^2
     \]

This final value represents the area inside the circle but outside the hexagon.
Transcribed Image Text:**Problem 6: Calculating the Area within a Circle but outside an Inscribed Regular Hexagon** Given a regular hexagon with side lengths of 16 cm, inscribed in a circle, the task is to determine the area enclosed by the circle but lying outside the hexagon. In order to solve this problem, follow these steps: 1. **Calculate the Radius of the Circumscribed Circle:** - For a regular hexagon inscribed in a circle, the radius of the circle is equal to the length of the side of the hexagon. Therefore, the radius \(r\) of the circle is 16 cm. 2. **Find the Area of the Circle:** - The formula for the area of a circle is \(A = \pi r^2\). - Substitute the value of \(r\) to get the area: \[ A = \pi \times (16)^2 = 256\pi \text{ cm}^2 \] 3. **Calculate the Area of the Regular Hexagon:** - The formula for the area of a regular hexagon with side length \(s\) is \(\frac{3\sqrt{3}}{2} s^2\). - Substitute the value of \(s\) to find the area: \[ A_{\text{hexagon}} = \frac{3\sqrt{3}}{2} \times (16)^2 = 384\sqrt{3} \text{ cm}^2 \] 4. **Determine the Area between the Circle and the Hexagon:** - Subtract the area of the hexagon from the area of the circle: \[ A_{\text{region}} = 256\pi - 384\sqrt{3} \text{ cm}^2 \] This final value represents the area inside the circle but outside the hexagon.
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