title: Program To Find The Area Of Pentagon
signature: function program_to_find_the_area_of_pentagon(a)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return abs(actual - expected) < 1e-09
  end
  
  function driver(a, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(a), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver(2009.019461888707, 6944120.6857642615);
      @printf("TEST-0...%s\n",result);
      
      result = driver(-1480.5131394215787, 3771147.371815937);
      @printf("TEST-1...%s\n",result);
      
      result = driver(357.7870347569567, 220240.9998483103);
      @printf("TEST-2...%s\n",result);
      
      result = driver(-8040.293697508038, 111222537.30911414);
      @printf("TEST-3...%s\n",result);
      
      result = driver(3821.882657293133, 25130647.008061722);
      @printf("TEST-4...%s\n",result);
      
      result = driver(-6840.635072240347, 80508515.3102342);
      @printf("TEST-5...%s\n",result);
      
      result = driver(1623.036598830132, 4532163.809416133);
      @printf("TEST-6...%s\n",result);
      
      result = driver(-9714.00706195298, 162347573.54592204);
      @printf("TEST-7...%s\n",result);
      
      result = driver(3916.454769669618, 26389745.561382204);
      @printf("TEST-8...%s\n",result);
      
      result = driver(-669.068424712943, 770176.1075446572);
      @printf("TEST-9...%s\n",result);
      
  end
  
  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;
  }