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Kotlin Program to Find the Area of a Circle
In this article, we will understand how find the area of a circle. Area of a circle is calculated by using the formula −
(pie*radius*radius)/7
Below is a demonstration of the same
Suppose our input is
Radius of the circle: 5
The desired output would be −
The Area of Circle is: 78.57142857142857
Algorithm
Step 1 − START
Step 2 − Declare two variables radius and myResult
Step 3 − Read the value of the radius from the user
Step 4 − Calculate the area of the circle by using the formula (22*radius*radius)/7 and store the result as area
Step 5 − Display the area value
Step 6 − STOP
Example 1
In this example, we will find the area of a circle using the above given formulae. First. declare and set the radius
val radius = 5
Now, calculate the area of the circle and save the result in a new variable myResult
val myResult = (22 * (radius.toDouble().pow(2)))/7
Let us now see the example to get the area of a circle −
import java.util.* import kotlin.math.pow fun main() { val radius = 5 println("The radius of the circle is defined as $radius") val myResult = (22 * (radius.toDouble().pow(2)))/7 println("Area of circle is: $myResult") }
Output
The radius of the circle is defined as 5 Area of circle is: 78.57142857142857
Example 2
In this example, we will find the area of a circle −
import java.util.* import kotlin.math.pow fun main() { val radius = 5 println("The radius of the circle is defined as $radius") getArea(radius) } fun getArea(radius: Int) { val myResult = (22 * (radius.toDouble().pow(2)))/7 println("Area of circle is: $myResult") }
Output
The radius of the circle is defined as 5 Area of circle is: 78.57142857142857