The sides are x, (x+1) and 5 (hypotenuse). x^2 + (x+1)^2 = 5^2 2x^2 + 2x + 1 = 25 2x^2 + 2x - 24 = 0 x^2 + x - 12 = 0 (x+4)*(x-3) = 0 The only positive solution is x= 3. ANswer. The legs are 3 and 4 inches. Classic (3,4,5)-right angled triangle.