A right triangle can be formed using three sides having lengths 18 inches 24 inches and?

To determine if a right triangle can be formed with sides of lengths 18 inches, 24 inches, and a third side, we can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse equals the sum of the squares of the other two sides. If we assume the third side is ( x ), we can check combinations: ( 18^2 + 24^2 = 324 + 576 = 900 ), so ( x ) must be ( 30 ) inches (since ( 30^2 = 900 )). Therefore, the third side must be 30 inches to form a right triangle.