Asa se face daca recipientul are capac:
At= 16ā¢16ā¢2+16ā¢30ā¢4+15ā¢15ā¢2+15ā¢25ā¢4=4382 interior si exterior
Si daca nu are capac se scade 16ā¢16+15ā¢15
b. V=16ā¢16ā¢30-15ā¢15ā¢25=2055
Deci m= 2055ā¢2,7=5548,5 g
At- aria totala; V-volum; m-masa; g-grame