a) P = a * b P = 8 cm * 17 cm = 136 cm
b) P = 24 mm * 3 mm = 72 mm
c) P = 10 dm * 23 dm = 230 dm
d) P = 25 m * 25 m = 625 m
e) P = 6 m * 12 cm = 6 m * 0,12 m = 0,72 m
f) P = 17 cm * 81 mm = 17 cm * 8,1 cm = 137,7 cm
