**C program for area of a**

**cuboids**

**Formula of surface area of cuboids:**

Surface_area = 2 *(w*l + l*h + h*w)

^{}**Formula of volume of cuboids:**

Volume = w * l * h

**Space diagonal of cuboids:**

Space_diagonal = √ (w*w + l*l + h*h)

^{}**C code:**

#include<stdio.h>

int main(){

float w,l,h;

float surface_area,volume,space_diagonal;

printf("Enter size of width, length and height of a cuboids : ");

scanf("%f%f%f",&w,&l,&h);

surface_area = 2*(w*l + l*h + h*w);

volume = w * l * h;

space_diagonal = sqrt(w*w + l*l + h*h);

printf("Surface area of cuboids is: %.3f",surface_area);

printf("\nVolume of cuboids is : %.3f",volume);

printf("\nSpace diagonal of cuboids is : %.3f",space_diagonal);

return 0;

}

**Sample output:**

Enter size of width, length and height of cuboids: 5 10 4

Surface area of cuboids is: 220.000

Volume of cuboids is: 200.000

Space diagonal of cuboids is: 11.874

7. Write a c program to find the area of rhombus.

8. Write a c program to find the area of parallelogram.