#include <stdio.h>
#include "triangle.h"
#include "square.h"
#include "shape.h"

int main(){
    Shape *triangle = newTriangle(20);
    Shape *square = newSquare(20);
    printf("Triangle area of perimeter 20: %f\n", triangle->area(triangle));
    printf("Square area of perimeter 20: %f\n", square->area(square));
    return 0;
}