My C code below doesn't run. Please, fix it.

/*

* This C program works with triangles.

*/

#define _CRT_SECURE_NO_WARNINGS

#include

#include

void Pascal(int rows) { //defination for pascal function

int coef = 1, space, i, j;//varaiables used to this funciton

for (i = 0; i < rows; i++) { // loop runs until number of rows

for (space = 1; space <= rows - i; space++) //for printing the spaces

printf("");

for (j = 0; j <= i; j++) { //loop runs with i number

if (j == 0 || i == 0) //intially coef is 1

coef = 1;

else

coef = coef * (i - j + 1) / j;// else claculating the pascal numbers

printf("%4d", coef);//printing the pascal number

}

printf(" ");//printing newline for next line

}

}

double Heron(double a, double b, double c) { //heron funciton defination

double p = (a + b + c) / 2; //calculating the p

double area = sqrt(p * (p - a)(p - b)(p - c));//claculating the area using herons formula

return area;//returning the area

}

double areaHeight(double* area, double* height) {//area_height funciton

double side1, side2, angle, radian;//to store the sides and angle

printf("Enter side1 side2: ");//taking sides form user

scanf("%lf %lf", &side1, &side2);

printf("Enter Angle:");//taking angle from user

scanf("%lf", &angle);

// in math libaray sin function is used for radains so we converting the angle to radian

radian = angle / 57.2958;

//finding the area using the given function

*area = 0.5 * side1 * side2 * sin(radian);

//for finding the height we need know which is hypotenus and which is another side.

//maximum value of side is hypotenus so for that we use terinary operator for this

double hyp = (side1 > side2) ? side1 : side2;

//minimum value of side is adjacent side so for that we use terinary operator

double side = (side1 < side2) ? side1 : side2;

//calculating the height with pythogrean theorem

*height = sqrt(hyp * hyp - side * side);

}

int main(void) { //main funciton

int choice; //taking for choice

while (1) {

//this for printing the menu

printf("*Menu** ");

printf("1.Pascal ");

printf("2.Heron ");

printf("3.Area/Height ");

printf("4.Quit ");

printf(" ");

//taking choice from user

printf("Enter the Choice: ");

scanf("%d", &choice);

printf(" ");

if (choice == 1) { //if the choice is 1

int rows; // to store the number of rows

printf("Enter the number of rows: ");

scanf("%d", &rows);//taking rows from user

Pascal(rows); //calling the pascal function with rows

printf(" ");

}

if (choice == 2) { //if choice is 2

double a, b, c, heron_area; //to store the side and area

printf("Enter the sides a b c: ");

scanf("%lf %lf %lf", &a, &b, &c);//taking sides from user

heron_area = Heron(a, b, c);//calling the heron funciton that returns area

printf("Area is %0.2lf ", heron_area);//printing the area

printf(" ");

}

if (choice == 3) { //if choice is 3

double height, area;

areaHeight(&area, &height);//calling teh area height function

printf("Area is %0.2lf ", area); //printing the area

printf("Height is %0.2lf ", height);//printing the height

printf(" ");

}

if (choice == 4) {//if choice is 4 the quit

printf("Thank you for Using this calculator,Bye :-)");

printf(" ");

break;//break the loop

}

}

}