Suppose sides of the triangle are 17x m, 15x m and 8x metres ∴ Perimeter = 17x + 15x + 8x = 40x Now, 40x = 40 ⇒ x = 1 m Therefore, the sides are 17 × 1 = 17 m, 15 × 1 = 15 m and 8 × 1 = 8 m Since (17)2 = (15)2+(8)2, i.e., it is a right angled triangle ∴ Area of the right angled triangle =