Question

va rog repede!(la 12 este "media aritmetica a numerelor 45 si 75"​

Answer 1

6.

0.005$m^{2}$=0.5$dm^{2}$=50$cm^{2}$

0.003$dam^{2}$=0.3$m^{2}$=30$dm^{2}$=3000$cm^{2}$

7.

0.36$dm^{2} =36cm^{2} =3600mm^{2}$

130075$cm^{2} =13007500mm^{2}$

8.

26.5$dam^{2} =$2650$m^{2}$

32658$dm^{2}$=325.58$m^{2}$

15625$cm^{2} =156.25dm^{2} =1.5625m^{2}$

9.

1426ari=1426$dam^{2}$=14.26$hm^{2}$=14.26ha

850000$m^{2}$=8500$dam^{2}$=85$hm^{2}$=85ha

10.

14008.2$m^{2}$=1400820$dm^{2}$=140.082$dam^{2}$=1.40082$hm^{2}$=140082ha

11.

281.004$dam^{2}$=$28100.4m^{2} =$2810040$dm^{2}$=281004000$cm^{2}$=281.004ari

12.

$l=m_{a} =\frac{45+75}{2} =\frac{120}{2} =60cm$

a)

$P=4l=4*60=240$

b)

$A=l^{2} =60^{2} =3600$

Answer 2

Răspuns:

ma=(45+75):2

    =120:2=60=l

a) P=60 ori 4 =240

b)l la 2= 60 ori 60=3600

Explicație pas cu pas:

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