Răspuns :
Răspuns:
Explicație pas cu pas:
1) L=2πR=2π*10=20π ; A=πR²=π*10²= 100 π ;⊕ ; 2) A=6L²=6*6²=216 ; V=L³=6³=216 ; 3) V=L*l*h=5*6*7=210
1. L = 2•pi•R = 20 pi
A = pi•R^2 = 100 pi
2. At = 6L^2 = 216 cm^2
V = L^3 = 216 cm^3
3. At = 2(5•6 + 5•7 + 6•7)
At = 2•107 = 214 cm^2
V = 5•6•7 = 210 cm^3
A = pi•R^2 = 100 pi
2. At = 6L^2 = 216 cm^2
V = L^3 = 216 cm^3
3. At = 2(5•6 + 5•7 + 6•7)
At = 2•107 = 214 cm^2
V = 5•6•7 = 210 cm^3