int j = 1;
int waitT = 750;
int x = 3;
int y = 7;
int z;

String myString = "j = ";
String mess1 = "A Circle with Radius ";
String mess2 = " has an Area equal to ";
String mess3 = ".";

float pi = 3.14;
float r = 2;
float area;



void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}



void loop() {
  // put your main code here, to run repeatedly:
  
  /*z = x + y;
  Serial.print("x = ");
  Serial.println(x);
  Serial.print("y = ");
  Serial.println(y);
  Serial.print(myString);
  Serial.println(z);

  x = x + 8;
  y = y +7;*/

  area = pi * r*r;
  Serial.print(mess1);
  Serial.print(r);
  Serial.print(mess2);
  Serial.print(area);
  Serial.println(mess3);

  //Serial.println(j);
  //j = j+1;

  delay(waitT);

  r = r + 0.5;

}