## Instructions

**Objective**

Write a C++ assignment program to implement geometry.

## Requirements and Specifications

This program works and I need to add two additional functions (functions are below):

**/* C Program to Calculate Square, Square root, Triangle Perimeter and Grade Average */**

```
#include
#include
int Calculate_Square(int Number);
float Calculate_Perimeter_Triangle(float a, float b, float c);
float Calculate_Grade(float grade1, float grade2, float grade3, float grade4);
int main()
{
int number, Square;
float a,b,c,Triangle, Square_Root;
float grade1, grade2, grade3, grade4, Grade;
printf(" \n Please Enter any integer Value : ");
scanf("%d", &number);
Square = Calculate_Square(number);
printf("\n Square of a given number %d = %d\n", number, Square);
/* Square Root */
printf("The square root of your number %d is %f\n",number, sqrt(number));
printf("\nPlease Enter three sides of triangle\n");
scanf("%f%f%f",&a,&b,&c);
printf("Enter 4 grade values for your course:\n");
scanf("%f%f%f%f",&grade1,&grade2,&grade3,&grade4);
Grade = Calculate_Grade(grade1, grade2, grade3, grade4);
printf("Your grade average is %f\n",Grade);
/* Triangle */
Triangle = Calculate_Perimeter_Triangle(a,b,c);
printf("Area of triangle is %f\n", Triangle);
return 0;
}
int Calculate_Square(int Number)
{
return Number * Number;
}
float Calculate_Perimeter_Triangle(float a, float b, float c)
{
float s, Perimeter;
Perimeter = a+b+c;
return Perimeter;
}
float Calculate_Grade(float g1, float g2, float g3, float g4)
{
Please add Fahrenheit to Celsius conversion:
int main()
{
float celsius, fahrenheit;
printf("Please Enter the temperature in Fahrenheit: \n");
scanf("%f", &fahrenheit);
// Convert the temperature from f to c formula
celsius = (fahrenheit - 32) * 5 / 9;
//celsius = 5 *(fahrenheit - 32) / 9;
//celsius =(fahrenheit-32) * 0.55556;
printf("\n %.2f Fahrenheit = %.2f Celsius", fahrenheit, celsius);
return 0;
}
Please Add this
#include
#include
#include
int main() {
printf("Enter your name: ");
char name[32];
fgets(name, 32, stdin);
name[strlen(name)-1] = '\0';
printf("Hello, %s!\n", name);
return EXIT_SUCCESS;
}}
```

**Source Code**

**/* C Program to Calculate Square, Square root, Triangle Perimeter and Grade Average */**

```
#include
#include
int Calculate_Square(int Number)
{
return Number*Number;
}
float Calculate_Perimeter_Triangle(float a, float b, float c)
{
return a + b + c;
}
float Calculate_Grade(float grade1, float grade2, float grade3, float grade4)
{
return (grade1+grade2+grade3+grade4)/4;
}
int main()
{
int number, Square;
float a,b,c,Triangle, Square_Root;
float grade1, grade2, grade3, grade4, Grade;
float celsius, fahrenheit;
/* Square*/
printf(" \n Please Enter any integer Value : ");
scanf("%d", &number);
Square = Calculate_Square(number);
printf("\n Square of a given number %d = %d\n", number, Square);
/* Square Root */
printf("\n The square root of your number %d is %f\n",number, sqrt(number));
/* Triangle Perimeter*/
printf("\n Please Enter three sides of triangle\n");
scanf("%f", &a);
scanf("%f", &b);
scanf("%f", &c);
Triangle = Calculate_Perimeter_Triangle(a,b,c);
printf("\n The Perimeter of the Triangle %0.2f\n", Triangle);
/* Grades Average*/
printf("\n Please Enter four grades \n");
scanf("%f", &grade1);
scanf("%f", &grade2);
scanf("%f", &grade3);
scanf("%f", &grade4);
Grade = Calculate_Grade(grade1,grade2,grade3,grade4);
printf("\n The Average of the Grades %0.2f\n", Grade);
/* Convert to celsius*/
printf("\n Please Enter the temperature in Fahrenheit: \n");
scanf("%f", &fahrenheit);
// Convert the temperature from f to c formula
celsius = (fahrenheit - 32) * 5 / 9;
//celsius = 5 *(fahrenheit - 32) / 9;
//celsius =(fahrenheit-32) * 0.55556;
printf("\n %.2f Fahrenheit = %.2f Celsius \n", fahrenheit, celsius);
/* largest number*/
double n1, n2, n3;
printf("Enter three different numbers: \n");
scanf("%lf %lf %lf", &n1, &n2, &n3);
// if n1 is greater than both n2 and n3, n1 is the largest
if (n1 >= n2 && n1 >= n3)
printf("%.2f is the largest number. \n", n1);
// if n2 is greater than both n1 and n3, n2 is the largest
if (n2 >= n1 && n2 >= n3)
printf("%.2f is the largest number. \n", n2);
// if n3 is greater than both n1 and n2, n3 is the largest
if (n3 >= n1 && n3 >= n2)
printf("%.2f is the largest number. \n", n3);
/* Find Factorial of a Number */
int n, i;
unsigned long long fact = 1;
printf("\n Enter an integer: ");
scanf("%d", &n);
if (n < 0)
printf("Error! Factorial of a negative number doesn't exist. \n");
else {
for (i = 1; i <= n; ++i) {
fact *= i;
}
printf("Factorial of %d = %llu \n", n, fact);
}
}
```

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