find the area of a regular polygon in go

main.go
Area = 0.5 * perimeter * apothem
33 chars
2 lines

main.go
package main

import (
	"fmt"
	"math"
)

func main() {
	var n float64 = 5 // number of sides of the polygon
	var s float64 = 10 // length of each side of the polygon

	// Calculate apothem using the formula:
	apothem := s / (2 * math.Tan(math.Pi/n))
	// Calculate perimeter
	perimeter := n * s
	// Calculate area using the formula:
	area := 0.5 * perimeter * apothem

	fmt.Printf("The area of the regular polygon is: %v", area)
}
430 chars
21 lines