5. Write a formula for the perimeter of the figure from problem #4 in terms of a, b, c, and d.

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.7: Solve Proportion And Similar Figure Applications
Problem 8.157TI: On the map, Seattle. Portland, and Boise form a triangle whose sides are shown in the figure below....
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**Task 5: Perimeter Formula Calculation**

**Objective:** Write a formula for the perimeter of the figure from problem #4 in terms of \( a, b, c, \) and \( d \).

**Diagram Description:**

The figure is composed of a rectangle with a semicircle on top. The rectangle has the following measurements:
- Height: \( a \)
- Base: \( b \)

The semicircle sits on top of the rectangle, sharing its width.
- The radius of the semicircle (half of the base of the rectangle): \( \frac{b}{2} \)

A diagonal line extends from the top corner of the rectangle to the edge of the semicircle, labeled \( d \).

**To find the perimeter:**

1. **Rectangle:**
   - One side of length \( a \)
   - One base of length \( b \)

2. **Semicircle:**
   - Perimeter: \( \pi \times \frac{b}{2} \) (half of the circle's circumference)

3. **Diagonal Line:** Length \( d \)

Thus, the perimeter \( P \) can be formulated as:
\[ P = b + 2a + \pi \times \frac{b}{2} - b + d \]
\[ P = 2a + \left(\frac{\pi b}{2}\right) + d \]
Transcribed Image Text:**Task 5: Perimeter Formula Calculation** **Objective:** Write a formula for the perimeter of the figure from problem #4 in terms of \( a, b, c, \) and \( d \). **Diagram Description:** The figure is composed of a rectangle with a semicircle on top. The rectangle has the following measurements: - Height: \( a \) - Base: \( b \) The semicircle sits on top of the rectangle, sharing its width. - The radius of the semicircle (half of the base of the rectangle): \( \frac{b}{2} \) A diagonal line extends from the top corner of the rectangle to the edge of the semicircle, labeled \( d \). **To find the perimeter:** 1. **Rectangle:** - One side of length \( a \) - One base of length \( b \) 2. **Semicircle:** - Perimeter: \( \pi \times \frac{b}{2} \) (half of the circle's circumference) 3. **Diagonal Line:** Length \( d \) Thus, the perimeter \( P \) can be formulated as: \[ P = b + 2a + \pi \times \frac{b}{2} - b + d \] \[ P = 2a + \left(\frac{\pi b}{2}\right) + d \]
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