Square task

How to:

• Clone the repo
• run go mod init somename
• run go mod tidy
• Edit solution.go
  • it contains correct package name
  • follow comments placeholder

Tasks:

Implement function to calculate square of an equilateral figurine following rules:

• func CalcSquare(sideLen float64, sidesNum intCustomType) float64
• CalcSquare func must return correct square for:
  • equilateral triangle(3 sides),
  • square(4 sides)
  • circle(0 sides) (count sideLen as radius)
  • if any other sideNum param is passed, return 0
• built-in Pi constant must be used to bypass the test