Mot thua ruong hinh thang co TBC 2 day la 301,5 m .
Neu tang day lon them 5,6 mthi dien tich hinh thang tang them 336 m vuong.
A/ Ting dien tich hinh thang bang don vi dam vuong.
B/ Cu 300 m vuong thu duoc 22,5 tan thoc. Hoi tren ca thuaguoi ta thua ruong do nguoi ta thu duoc bao nhieu kilogam thoc ?