Final answer:
To find the missing diagonal of a rectangle in JavaScript, you can create a function that uses the Pythagorean theorem formula √(a² + b²), where 'a' and 'b' are the lengths of the sides of the rectangle.
Step-by-step explanation:
To calculate the missing side of a rectangle, which in this case is the diagonal, we can use the Pythagorean theorem. The diagonal of a rectangle can be found by formula √(a² + b²), where 'a' and 'b' are the lengths of the sides of the rectangle. Below is the JavaScript function to accomplish this:
function calculateDiagonal(a, b) {
return Math.sqrt(a * a + b * b);
}
This function calculateDiagonal takes in two arguments, 'a' and 'b', represents the sides of the rectangle and returns the length of the diagonal after computing it using the Pythagorean theorem.