Odpowiedź:
np. b
a = 0,3 dm = 3 cm
b = 0,6 dm = 6 cm
c = 0,4 dm = 4 cm
Pc = 2*(a*b + a*c + b*c )
Pc = 2*( 3*6 + 3*4 + 6*4 ) = 2*(18 + 12 + 24 ) = 108
Pc = 108 cm²
==============
V = a*b*c = 3*6*4 = 72
V = 72 cm³
===============
a) , c ) rozwiąż tak samo.
Szczegółowe wyjaśnienie:
a)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 5 * 8 + 2 * 5 * 15 + 2 * 8 * 15 = 80 + 150 + 240 = 470cm^{2}\\\\V = abc\\\\V = 5 * 8 * 15 = 600cm^{3}[/tex]
b)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 3 * 6 + 2 * 3 * 4 + 2 * 6 * 4 = 36 + 24 + 48 = 108cm^{2}\\\\V = abc\\\\V = 3 * 6 * 4 = 72cm^{3}[/tex]
c)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 4 * 18 + 2 * 4 * 20 + 2 * 18 * 20 = 144 + 160 + 720 = 1024m^{2}\\\\V = abc\\\\V = 4 * 18 * 20 = 1440m^{3}[/tex]
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Odpowiedź:
np. b
a = 0,3 dm = 3 cm
b = 0,6 dm = 6 cm
c = 0,4 dm = 4 cm
Pc = 2*(a*b + a*c + b*c )
Pc = 2*( 3*6 + 3*4 + 6*4 ) = 2*(18 + 12 + 24 ) = 108
Pc = 108 cm²
==============
V = a*b*c = 3*6*4 = 72
V = 72 cm³
===============
a) , c ) rozwiąż tak samo.
Szczegółowe wyjaśnienie:
Verified answer
Odpowiedź:
a)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 5 * 8 + 2 * 5 * 15 + 2 * 8 * 15 = 80 + 150 + 240 = 470cm^{2}\\\\V = abc\\\\V = 5 * 8 * 15 = 600cm^{3}[/tex]
b)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 3 * 6 + 2 * 3 * 4 + 2 * 6 * 4 = 36 + 24 + 48 = 108cm^{2}\\\\V = abc\\\\V = 3 * 6 * 4 = 72cm^{3}[/tex]
c)
[tex]P_{c} = 2ab + 2ac + 2bc\\\\P_{c} = 2 * 4 * 18 + 2 * 4 * 20 + 2 * 18 * 20 = 144 + 160 + 720 = 1024m^{2}\\\\V = abc\\\\V = 4 * 18 * 20 = 1440m^{3}[/tex]
Szczegółowe wyjaśnienie: