powered by desmos Find the LENGTH of the arc YX (keep in terms of pi) 10 Y 70° O 10T O 19.4447 O 3.8897T O 70T

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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**Finding the Length of Arc YX: Understanding Circular Segments**

**Question:**
Find the LENGTH of the arc YX (keep in terms of π).

**Diagram Details:**
The image presents a circle with a radius of 10 units. Point Y and point X are positioned such that angle ∠YX is 70°. 

**Solution Approach:**
1. **Identifying the Components:**
   - The radius of the circle (r) = 10 units
   - The central angle (θ) = 70°

2. **Formula for Arc Length:**
   The formula to find the length of an arc (L) is given by:
   \[
   L = \frac{θ}{360°} \times 2πr
   \]
   where:
   - \(θ\) is the central angle in degrees,
   - \(r\) is the radius of the circle.

3. **Substitute the Values:**
   \[
   L = \frac{70°}{360°} \times 2π \times 10
   \]

4. **Simplifying the Equation:**
   \[
   L = \frac{70}{360} \times 20π
   \]
   \[
   L = \frac{7}{36} \times 20π
   \]
   \[
   L = \frac{140}{36}π
   \]
   \[
   L = \frac{35}{9}π
   \]

5. **Final Calculation:**
   \[
   L ≈ 3.889π
   \]

**Answer Choices Provided:**
- 10π
- 19.444π
- 3.889π
- 70π

The calculated arc length of YX is approximately \( 3.889π \).

**Conclusion:**
By applying the formula for arc length and substituting the given values, we determine that the length of arc YX is \(3.889π\).

For more educational resources and learning tips, please explore our website sections on geometry and circle theorems. 

---

This structure is designed to help students understand and apply the concept of arc length calculation in a clear and step-by-step manner.
Transcribed Image Text:**Finding the Length of Arc YX: Understanding Circular Segments** **Question:** Find the LENGTH of the arc YX (keep in terms of π). **Diagram Details:** The image presents a circle with a radius of 10 units. Point Y and point X are positioned such that angle ∠YX is 70°. **Solution Approach:** 1. **Identifying the Components:** - The radius of the circle (r) = 10 units - The central angle (θ) = 70° 2. **Formula for Arc Length:** The formula to find the length of an arc (L) is given by: \[ L = \frac{θ}{360°} \times 2πr \] where: - \(θ\) is the central angle in degrees, - \(r\) is the radius of the circle. 3. **Substitute the Values:** \[ L = \frac{70°}{360°} \times 2π \times 10 \] 4. **Simplifying the Equation:** \[ L = \frac{70}{360} \times 20π \] \[ L = \frac{7}{36} \times 20π \] \[ L = \frac{140}{36}π \] \[ L = \frac{35}{9}π \] 5. **Final Calculation:** \[ L ≈ 3.889π \] **Answer Choices Provided:** - 10π - 19.444π - 3.889π - 70π The calculated arc length of YX is approximately \( 3.889π \). **Conclusion:** By applying the formula for arc length and substituting the given values, we determine that the length of arc YX is \(3.889π\). For more educational resources and learning tips, please explore our website sections on geometry and circle theorems. --- This structure is designed to help students understand and apply the concept of arc length calculation in a clear and step-by-step manner.
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