5. write a program to calculate the area of circle. The equation for determining the area of acircle is area 3.1416 radius radius, Assume that the circle has a 5 inches 6. Write a program to calculate the volume of a pool. The equation for determining the volume is: volume- length width depth. Assume that the pool has a length of 25 feet,a width of 10 feet, and a depth of 6 feet. e 7. Write a program to convert temperature in degrees Fahrenheit to degrees Celsius. The equation for this conversion is Celsius- 5.0/9.0 (Fahrenheit -32.00. Have your program convert and displays the Celsius temperature corresponding to 98.6 degrees Fahrenheit

## Expert Answer

**5)c++ program to calculate area of circle:**#include<iostream>

using namespace std;

int main()

{

float radius,area;

cout<< “nEnter radius of circle : “;

cin>>radius;

area = 3.14*radius*radius;

cout<<“Area of circle : “<<area;

return 0;

}

**6) C++ program to calculate volume of pool:**

#include<stdio.h>

int main()

{

int len , wid,dep, V;

cout<<“Enter the length of the swimming pool: “<<endl;

cin>>len;

cout<<“Enter the width of the swimming pool: “<<endl;

cin<<wid;

cin<<“Enter the depth of the swimming pool: “<<endl;

cin<<dep;

V = len * wid * dep;

cout<<“Volume is “<<V;

return 0;

}

**7. C++ program to convert tempurature from faurenheit to celsius:**

#include<iostream.h>

#include<conio.h>

void main()

{

float celsius, fahrenheit;

clrscr();

cout<<“Enter temp. in Fahrenheit: “;

cin>>fahrenheit;

celsius = (fahrenheit – 32) * 5/9;

cout<<“Temp. in Celsius: “<<celsius;

getch();

}

**9)**

#include<stdio.h>

int main()

{

int feet,mile=2.36;

feet = 5280*mile;

cout<<“distance in feets: “<<feet;

}