#include <stdio.h>
	void perimeter(float l, float w)
	{
	printf("\nPerimeter is %.2f\n", (2*l) + (2*w));
	}
	void area(float l, float w)
	{
	printf("\nArea is %.2f\n", l * w);
	}
	void volume(float l, float w, float h)
	{
	printf("\nThe volume is %.2f\n", l * w * h);
	}