Finding Hypotenous

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this program will count hypotenuse of triangle if other two sides are entered.the formula to find hypotenouse is goiven by:

hypo=(x*x)+(y*y)

Program:

#include<stdio.h>
#include<conio.h>
#include<math.h>
int hyp(int,int);
main()
{
        int a,b;
        clrscr();
        printf("Enter side 1: ");
        scanf("%d",&a);
        printf("\nEnter side 2: ");
        scanf("%d",&b);
        printf("\nHypotenous is %d",hyp(a,b));
        getch();
}
int hyp(x,y)
{
        int hypo;
        hypo=sqrt((x*x)+(y*y));
        return hypo;

}