Răspuns :
a) P = 3cm + 7cm + x cm (nu ai specificat inca o latura) = 10cm+ x
b) Transformam in cm
0,7 dm = 7 cm
40 mm = 4 cm
P = 3cm + 7cm + 4cm = 14 cm
b) Transformam in cm
0,7 dm = 7 cm
40 mm = 4 cm
P = 3cm + 7cm + 4cm = 14 cm