PHP Exercises: Check whether three given lengths of three sides form a right triangle

Last update on December 20 2024 10:18:01 (UTC/GMT +8 hours)

Write a PHP program to check whether three given lengths (integers) of three sides form a right triangle. Print "Yes" if the given sides form a right triangle otherwise print "No".

Input:
Integers separated by a single space.
1 ≤ length of the side ≤ 1,000

Pictorial Presentation:

Pictorial Presentation:

Sample Solution:

PHP Code:

<?php
// Assign values to variables representing the sides of a triangle
$a = 5;
$b = 3;
$c = 4;

// Square each side by multiplying it by itself
$a *= $a;
$b *= $b;
$c *= $c;

// Check if the sum of the squares of two sides equals the square of the third side
if ($a + $b == $c || $a + $c == $b || $b + $c == $a) {
    // Print "YES" if the condition is true
    echo "YES\n";
} else {
    // Print "NO" if the condition is false
    echo "NO\n";
}
?>

Explanation:

• Variable Assignment:
• Three variables, $a, $b, and $c, are assigned values representing the sides of a triangle: $a = 5, $b = 3, and $c = 4.
• Squaring the Sides:
• Each side is squared by multiplying it by itself:
• $a *= $a; (Now $a is 25)
• $b *= $b; (Now $b is 9)
• $c *= $c; (Now $c is 16)
• Checking the Pythagorean Theorem:
• The code checks if the sum of the squares of any two sides equals the square of the third side using the condition:
• if ($a + $b == $c || $a + $c == $b || $b + $c == $a)
• This condition evaluates whether the triangle with the given sides is a right triangle.
• Printing the Result:
• If any of the conditions are true, it prints "YES\n", indicating that the triangle can be classified as a right triangle.
• If none of the conditions are met, it prints "NO\n", indicating that the triangle is not a right triangle.

Output:

YES

Flowchart:

PHP Code Editor:

Click to Open Editor

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a PHP program to compute the digit number of sum of two given integers.
Next: Write a PHP program which solve the equation. Print the values of x, y where a, b, c, d, e and f are given.