Program to calculate the length of the diagonal in a rectangle

Write a program to calculate the length of the diagonal in a rectangle with the given length and breadth.

Examples:

Input: Length = 5, Width = 3
Output: Diagonal Length = 5.83095

Input: Length = 8, Width = 6
Output: Diagonal Length = 10

Approach: To solve the problem, follow the below idea:

The diagonal of a rectangle forms a right-angled triangle with the length and width of the rectangle. We can use the Pythagoras theorem to calculate the length of the diagonal. So, we can use this formula Diagonal² = Length² + Breadth² to calculate the length of the diagonal.

Step-by-step algorithm:

• Square the length and width.
• Sum the squares.
• Take the square root of the sum.

Below is the implementation of the algorithm:

Diagonal Length: 5.83095

Time Complexity: O(1)
Auxiliary Space: O(1)