23. Geometry Calculator Write a program that displays the following menu: Geometry Calculator 1. Calculate the Area of a Circle 2. Calculate the Area of a Rectangle 3. Calculate the Area of a Triangle 4. Quit Enter your choice (1-4): If the user enters 1, the program should ask for the radius of the circle then display its arca. Use the following formula: area= r

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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### Geometry Calculator

**Problem Statement:**
Write a program that displays the following menu:

#### Geometry Calculator
1. Calculate the Area of a Circle  
2. Calculate the Area of a Rectangle  
3. Calculate the Area of a Triangle  
4. Quit  

*Enter your choice (1-4):*

**Instructions:**
- If the user enters 1, the program should ask for the radius of the circle and then display its area. Use the following formula:
  \[
  \text{area} = \pi r^2
  \]
  Use 3.14159 for \(\pi\) and the radius of the circle for \(r\).
  
- If the user enters 2, the program should ask for the length and width of the rectangle, then display the rectangle's area. Use the following formula:
  \[
  \text{area} = \text{length} \times \text{width}
  \]
  
- If the user enters 3, the program should ask for the length of the triangle's base and its height, then display its area. Use the following formula:
  \[
  \text{area} = \frac{1}{2} \times \text{base} \times \text{height}
  \]

- If the user enters 4, the program should end.

**Input Validation:**
- Display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu.
- Do not accept negative values for the circle's radius, the rectangle's length or width, or the triangle's base or height.
Transcribed Image Text:### Geometry Calculator **Problem Statement:** Write a program that displays the following menu: #### Geometry Calculator 1. Calculate the Area of a Circle 2. Calculate the Area of a Rectangle 3. Calculate the Area of a Triangle 4. Quit *Enter your choice (1-4):* **Instructions:** - If the user enters 1, the program should ask for the radius of the circle and then display its area. Use the following formula: \[ \text{area} = \pi r^2 \] Use 3.14159 for \(\pi\) and the radius of the circle for \(r\). - If the user enters 2, the program should ask for the length and width of the rectangle, then display the rectangle's area. Use the following formula: \[ \text{area} = \text{length} \times \text{width} \] - If the user enters 3, the program should ask for the length of the triangle's base and its height, then display its area. Use the following formula: \[ \text{area} = \frac{1}{2} \times \text{base} \times \text{height} \] - If the user enters 4, the program should end. **Input Validation:** - Display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu. - Do not accept negative values for the circle's radius, the rectangle's length or width, or the triangle's base or height.
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