Question

10 si 11 pls rapid dau coroana

Answer 1

10a
A=96 m²
L=1,6 dam=16 m
l=A:L=96:16=6 m

10b
A=96 m²
l=800 cm=8 m
L=A:l=96:8=12 m


11a
A=72 dm²
L=0,12 dam =12 dm
l=A:L=72:12= 6 dm
P=2(L+l)=2(12+6)=36 dm

11b)
A=72 dm²
l=400 mm =4 dm
L=A:l=72:4= 18 dm
P=2(L+l)=2(18+4)=44 dm

Answer 2

10. Mai intai transformam in m2
L=1,6 dam = 160 m2
l=800 cm = 0,08 m2
11. L = 0,12 dam = 1200 dm2
l=400mm= 0,04 dm2
P = L•2+l•2
P -= 1200 dm2 • 2 + 0,04 •2
P= 2400 + 0,08
P= 2400,08 => 2400,8 dm2