# C Program to Determine the Quadrant of the Cartesian Plane

Let’s have a look at how to determine the Quadrant of the Cartesian Plane. This C Program read the x and y coordinates of the vertex and also read a Length of aside.

## C Program to Determine the Quadrant of the Cartesian Plane

```#include <stdio.h>
void main()
{
int co1,co2;
printf("Input the values for X and Y coordinate : ");
scanf("%d %d",&co1,&co2);

if( co1 > 0 && co2 > 0)
printf("The coordinate point (%d,%d) lies in the First quandrant.\n",co1,co2);
else if( co1 < 0 && co2 > 0)
printf("The coordinate point (%d,%d) lies in the Second quandrant.\n",co1,co2);
else if( co1 < 0 && co2 < 0)
printf("The coordinate point (%d, %d) lies in the Third quandrant.\n",co1,co2);
else if( co1 > 0 && co2 < 0)
printf("The coordinate point (%d,%d) lies in the Fourth quandrant.\n",co1,co2);
else if( co1 == 0 && co2 == 0)
printf("The coordinate point (%d,%d) lies at the origin.\n",co1,co2);

}```

Output:

```Input the values for X and Y coordinate : 7 9
The coordinate point (7,9) lies in the First quandrant.```