# Golang Program to Find the Area of a Triangle Given All Three Sides

Go ProgrammingServer Side ProgrammingProgramming

## Steps

• Read all the three sides of the triangle and store them in three separate variables.
• Using the Heron's formula, compute the area of the triangle.
• Print the area of the triangle.
 Enter first side: 15Enter second side: 9Enter third side: 7Area of the triangle is: 20.69 Enter first side: 5Enter second side: 6Enter third side: 7Area of the triangle is: 14.7

## Explanation

• User must enter all three numbers and store them in separate variables.
• First, the value of s is found which is equal to (a+b+c)/2
• Then, the Heron's formula is applied to determine the area of the triangle formed by all three sides.
• Finally, the area of the triangle is printed.

## Example

Live Demo

package main
import (
"fmt"
"math"
)
func main(){
var a, b, c float64
fmt.Print("Enter first side of the triangle: ")
fmt.Scanf("%f", &a)
fmt.Print("Enter second side of the triangle: ")
fmt.Scanf("%f", &b)
fmt.Print("Enter third side of the triangle: ")
fmt.Scanf("%f", &c)
s:=(a+b+c)/2
area:=math.Sqrt(s * (s - a) * (s - b) * (s - c))
fmt.Printf("Area of the triangle is: %.2f", area)
}

## Output

Enter first side of the triangle: 15
Enter second side of the triangle: 9
Enter third side of the triangle: 7
Area of the triangle is: 20.69
Published on 31-Jul-2021 15:36:51