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plsssss! dau coroanaaaaa​

Plsssss Dau Coroanaaaaa class=

Răspuns :

Răspuns:

2.A=?

A=[tex]l^{2}[/tex]

P=24[tex]\sqrt{2}[/tex]=4*l  => l=([tex]24\sqrt{2}[/tex])/4=6[tex]\sqrt{2}[/tex]cm

=>A=[tex](6\sqrt{2}) ^{2}[/tex]=36*2=72[tex]cm^{3}[/tex]

3. P=30cm =>l=10cm

A=([tex]l^{2}[/tex][tex]\sqrt{3}[/tex])/4=(100[tex]\sqrt{3}[/tex])4=25[tex]\sqrt{3}[/tex] [tex]cm^{3}[/tex]

6. d1=40cm, d2=30cm

h=2,4dm=24cm

A=(d1*d2)/2=(40*30)/2=600 cm cub

A=l*h =>l=A/h=600/24=25cm

Explicatie:

Problemele 1,4,5 sunt pe fisier.

Sper ca te-am ajutat!

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