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Theodore Kelechukwu Onyejiaku

The **perimeter **of a circle is the distance around a closed figure, which in this case is a circle. It is also known as the **circumference.** It is the product of 2, pi, and the circle's radius.

All we need to do to find this value is to create a constant called `pi`

using the `val`

keyword. Next, we multiply this with other values.

2 * PI * radius

Syntax of perimeter of a circle in scala

: This is pi in mathematics. Its value is**PI**`3.14`

.

: This is the radius specified.**radius**

The value returned is a float, which is the total distance around the circle.

// import the math module import scala.math._ object Main extends App { // create a PI value val PI = Math.PI // create some radii var rad1 = 3 var rad2 = 45 var rad3 = 1.5 var rad4 = 0.1 // get the perimeter of cricles var per1 = 2 * PI * rad1 var per2 = 2 * PI * rad2 var per3 = 2 * PI * rad3 var per4 = 2 * PI * rad4 // print the perimeters println("The perimeter of area of radius "+rad1+" is: "+per1) println("The perimeter of area of radius "+rad2+" is: "+per2) println("The perimeter of area of radius "+rad3+" is: "+per3) println("The perimeter of area of radius "+rad4+" is: "+per4) }

Get the perimeter of a circle in Scala

- Line 2: We import the
`Math`

module. - Line 6: We create a
`PI`

constant value. - Lines 9–12: We create some radius values.
- Lines 15–18: We get the perimeter of circles with the radius created.
- Lines 21–24: We print the perimeters.

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Theodore Kelechukwu Onyejiaku

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