\(51730cm^{2^{ }}\)
=> 20200cm2
= 7,005 m3
= 8,005 m3
= 8,05 m2
= 2,394 dm3
1) D
2) C
3) a. 7,8cm b. 21,98cm
4) C
5) B
6) B
B
C
=> 380,6
C. 1014dm2
a) 31,378m3
b) 8,15m3
c) 68,45m3
Sxung quanh: 50 x 10 = 500 cm2