a)
[tex]P_{p} = 2(5 \times 5 + 5 \times 6 + 5 \times 6) = 2(25 + 30 + 30) = 2 \times 85 = 170 {cm}^{2} [/tex]
b)
[tex]P_{p} = 2(3 \times 4 + 4 \times 2 + 3 \times 2) = 2(12 + 8 + 6) = 2 \times 26 = 52 {dm}^{2} [/tex]
c)
[tex]6mm = 0.6cm \\ 1cm \\ 6cm \\ P_{p} = 2(0.6 \times 1 + 1 \times 6 + 0.6 \times 6) = 2(0.6 + 6 + 3.6) = 2 \times 10.2 = 20.4 {cm}^{2} [/tex]
Odpowiedź:
2×5×5+2×5×6+2×5×6=50+60+60=170cm^2
2×3×4+2×3×2+2×4×2=24+12+16=52dm^2
2×0,6×1+2×0,6×6+2×1×6=1,2+7,2+12=20,4cm^2
