a_1.cpp
#include"a_1.h"
void Circle::setorigin(float x,float y)
{
pointX=x;
pointY=y;
}
void Circle::setradius(float r)
{
radius=r;
}
void Circle::getarea()
{
cout<<PI*radius*radius;
}
void Circle::getperimeter()
{
cout<<2*PI*radius;
}
void main()
{
Circle t;
t.getperimeter();
}
