The painting by itself is a rectangle with length 20 cm20 \text{ cm} 20 cm 20, space, c, m and width 16 cm16 \text{ cm} 16 cm 16, space, c, m . the painting and frame together form a larger rectangle with length 25 cm25 \text{ cm} 25 cm 25, space, c, m and width 20 cm20 \text{ cm} 20 cm 20, space, c, m . find the area of the frame.