A Rectangle is a quadrilateral with four right angles (90°). In a rectangle, the opposite sides are equal. A rectangle with all four sides equal is called a Square. A rectangle can also be called as right angled parallelogram.
Rectangle
In the above rectangle, the sides A and C are equal and B and D are equal.
The perimeter of a rectangle is the total length of all its four sides. It can be simply calculated by all its four sides.
Perimeter of rectangle ABCD = A+B+C+D
Since the opposite sides are equal in a rectangle, it can be calculated as the sum of twice of one of its side and twice of its adjacent side.
Perimeter of rectangle ABCD = 2A + 2B = 2(A+B)
Program
Java
// Java program to find the perimeter of a Rectangleimport java.io.*;class GFG { // Method to calculate the perimeter of the rectangle // with given length and breadth static void perimeter(int length, int breadth) { // Calculate the 'perimeter' using the formula int perimeter = 2 * (length + breadth); System.out.println("The perimeter of the given rectangle of length " + length + " and breadth " + breadth + " = " + perimeter); } // Driver method public static void main(String[] args) { // Initialize a variable length that stores length of // the given rectangle int length = 10; // Initialize a variable breadth that stores breadth // of the given rectangle int breadth = 20; // Call the perimeter method on these length and // breadth perimeter(length, breadth); }} |
Output
The perimeter of the given rectangle of length 10 and breadth 20 = 60
Time complexity: O(1)
Auxiliary space: O(1)
