title: Program To Find The Area Of Pentagon
signature: def program_to_find_the_area_of_pentagon(a):
test_code: import array
  import bisect
  import collections
  import datetime
  import functools
  import heapq
  import itertools
  import math
  import queue
  import re
  import string
  import sys
  from typing import Any, Dict, List, Optional, Set
  
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  def validate_solution(actual, expected):
      return abs(actual - expected) < 1e-09
  
  def driver(a, expected):
      try:
          if validate_solution(PLACEHOLDER_FN_NAME(
              a),
              expected
          ):
              return "PASSED"
          return "FAILED"
      except Exception as exception_obj:
          return type(exception_obj).__name__
      
  if __name__ == "__main__":
      result = driver(2009.019461888707, 6944120.6857642615)
      print(f"TEST-0...{result}")
  
      result = driver(-1480.5131394215787, 3771147.371815937)
      print(f"TEST-1...{result}")
  
      result = driver(357.7870347569567, 220240.9998483103)
      print(f"TEST-2...{result}")
  
      result = driver(-8040.293697508038, 111222537.30911414)
      print(f"TEST-3...{result}")
  
      result = driver(3821.882657293133, 25130647.008061722)
      print(f"TEST-4...{result}")
  
      result = driver(-6840.635072240347, 80508515.3102342)
      print(f"TEST-5...{result}")
  
      result = driver(1623.036598830132, 4532163.809416133)
      print(f"TEST-6...{result}")
  
      result = driver(-9714.00706195298, 162347573.54592204)
      print(f"TEST-7...{result}")
  
      result = driver(3916.454769669618, 26389745.561382204)
      print(f"TEST-8...{result}")
  
      result = driver(-669.068424712943, 770176.1075446572)
      print(f"TEST-9...{result}")
  
      sys.exit(0)
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;
  }