find the area of a sector of a circle in go

To find the area of a sector of a circle in Go, you can use the following formula:

main.go
area := (angleInRadians / (2 * math.Pi)) * math.Pi * math.Pow(radius, 2)
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Where angleInRadians is the central angle of the sector in radians, radius is the radius of the circle.

Here's an example code snippet to compute the area of a sector when the angle and the radius are known:

main.go
package main

import (
	"fmt"
	"math"
)

func main() {
	angleInRadians := 1.3
	radius := 5.8

	area := (angleInRadians / (2 * math.Pi)) * math.Pi * math.Pow(radius, 2)

	fmt.Printf("The area of the sector is %.2f\n", area)
}
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This code will output the following:

main.go
The area of the sector is 13.23
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This means that the area of the sector is 13.23 square units, with the given angle and radius values.