Lab1 Circumference , Area

void setup() {
float Di = 14; //Diameter
float Ra = (Di/2); //Radius
float Ci; //Circumference
float Ar; //Area

Ci = 2*PI*Ra;
Ar = PI*(Ra*Ra);

println("Diameter =" +Di);
println("Circumference =" +Ci);
println("Area =" +Ar);
}