C program to convert Celsius to Fahrenheit:

Here, we learn how to write a C program to convert Fahrenheit from centigrade?. We will write the C program to convert Fahrenheit from centigrade. Write a C program to input temperature in Fahrenheit and convert it to centigrade. How to convert temperature from degree Fahrenheit to degree centigrade in C programming. Logic to convert temperature from Fahrenheit to centigrade in C.

Formula to convert Celsius to Fahrenheit:

•  Program:

#include<stdio.h>
#include<conio.h>
int main()
{
    float f,c;
    
    printf("Enter the Fahrenheit value :");
    scanf("%f",&f);

    printf("Convert from Fahrenheit to centigrade : %f",c=(f-32)*5/9);
//when convert from centigrade to Fahrenheit : f=(c*9/5)+32.
    
    getch();
    return 0;
}

Enter the Fahrenheit value :45
Convert from Fahrenheit to centigrade : 7.222222

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In this c program, we will convert distance input by the user in meters, feet, inches, and centimeters. We will also write the algorithm of c program to convert distance in meters, feet, inches, and centimeters. We will firstly breakdown the problem and write an algorithm, then after that, we will write the c program and obtain the required output.

We need to take distance (in kilometers) from the user in kilometers and then convert it into meters, feet, inches, and centimeters and display as an output on the screen.

•  Program:

#include<stdio.h>
#include<conio.h>
int main()
{
    float k,m,f,i,c;

    printf("Enter distance in to kilometer :");
    scanf("%f",&k);

    printf("Kilometer is convert in to meter : %f\n",m=k*1000);
    printf("Kilometer is convert in to feet : %f\n",f=k*3280.84);
    printf("Kilometer is convert in to inches : %f\n",i=k*39370.1);
    printf("Kilometer is convert in to centimeter : %f\n",c=k*100000);
    
    getch();
    return 0;
}

Enter distance in to kilometer :24
Kilometer is convert in to meter : 24000.000000
Kilometer is convert in to feet : 78740.156250
Kilometer is convert in to inches : 944882.375000
Kilometer is convert in to centimeter : 2400000.000000

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#include<stdio.h>
#include<conio.h>
int main()
{
    int a,b;

    printf("Enter the first variable a =");
    scanf("%d",&a);

    printf("Enter the second variable b =");
    scanf("%d",&b);

    printf("Before interchange, a=%d and b=%d\n",a,b);

    printf("After interchange, a=%d and b=%d",b,a);

    getch();
    return 0;
}

•  Output:

Logic to calculate simple interest:

•  Program:

#include<stdio.h>
#include<conio.h>
int main()
{
    int p,r,n;
    float i;//hear can use of float value than show of "float"\when use intager than show of "int".

    printf("principal amount is :");
    scanf("%d",&p);
    
    printf("rate of intrest is :");
    scanf("%d",&r);

    printf("number of year is :");
    scanf("%d",&n);

    printf("calculat simple intrest is : %f",i=(p*r*n)/100);
    getch();
    return 0;
}

principal amount is :30
rate of intrest is :24
number of year is :34
calculat simple intrest is : 244.000000

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C Program to find Area Of a Triangle using base and height

•  program:

Enter of height :65
Enter of base :48
Area of triangle : 1560

•   Explain:

1. Input base of the triangle. Store in some variable say base.
2. Input height of the triangle. Store in some variable say height.
3. Use triangle area formula to calculate area i.e. area = (base * height) / 2.
4. Print the resultant value of area.