A rectangle is a flat figure in a plane. It has four sides and four equal angles of 90 degrees each. In a rectangle all four sides are not of equal length like a square, sides opposite to each other have equal length. Both diagonals of the rectangle have equal lengths.
Examples:
Input: 4 5 Output: Area = 20 Perimeter = 18 Input: 2 3 Output: Area = 6 Perimeter = 10
Formulae:
Area of rectangle: a*b Perimeter of rectangle: 2*(a + b)
Example: Below is the example that will illustrate the above formula:
Javascript
<script> // Function to Find the Area of Triangle
function areaRectangle(a, b) {
let area = a * b;
return area;
}
// Function to Find the Parameter of Triangle
function perimeterRectangle(a, b) {
let perimeter = 2 * (a + b);
return perimeter;
}
// Driver program
let a = 5;
let b = 6;
console.log( "Area = " + areaRectangle(a, b));
console.log( "Perimeter = " + perimeterRectangle(a, b));
</script> |
Output:
Area = 30 Perimeter = 22
Time Complexity: O(1) as it is performing constant operations
Auxiliary Space: O(1)