title: Program To Find The Area Of Pentagon
signature: function programToFindTheAreaOfPentagon($a) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return abs($actual - $expected) < 1e-09;
  }
  
  function driver($a, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($a), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        2009.019461888707, 
        6944120.6857642615));
      
      printf("TEST-1...%s\n",driver(
        -1480.5131394215787, 
        3771147.371815937));
      
      printf("TEST-2...%s\n",driver(
        357.7870347569567, 
        220240.9998483103));
      
      printf("TEST-3...%s\n",driver(
        -8040.293697508038, 
        111222537.30911414));
      
      printf("TEST-4...%s\n",driver(
        3821.882657293133, 
        25130647.008061722));
      
      printf("TEST-5...%s\n",driver(
        -6840.635072240347, 
        80508515.3102342));
      
      printf("TEST-6...%s\n",driver(
        1623.036598830132, 
        4532163.809416133));
      
      printf("TEST-7...%s\n",driver(
        -9714.00706195298, 
        162347573.54592204));
      
      printf("TEST-8...%s\n",driver(
        3916.454769669618, 
        26389745.561382204));
      
      printf("TEST-9...%s\n",driver(
        -669.068424712943, 
        770176.1075446572));
      
  }
  
  main();
  ?>
source_py: def program_to_find_the_area_of_pentagon(a):
      area = (((sqrt((5 * (5 + (2 * sqrt(5))))) * a) * a) / 4)
      return area
source_cpp: float program_to_find_the_area_of_pentagon(float a) {
    float area;
    area = ( sqrt ( 5 * ( 5 + 2 * ( sqrt ( 5 ) ) ) ) * a * a ) / 4;
    return area;
  }