Oblicz pole powierzchni prostopadłościanu o wymiarach:
a) 1m x 6m x 7m
b) 4cm x 4cm x 7cm
c) 11cm x 9cm x 3cm
d) 3m x 1dm x 2m
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a) 2 * 7 * 1 + 2 * 6 * 1 + 2 * 7 * 6 = 14 + 13 + 84 = 111m³
b) 2 * 4 * 4 + 2 * 4 * 7 + 2 * 7 * 4 = 32 + 56 + 56 = 144cm³
c) 2 * 3 * 9 + 2 * 3 * 11 + 2 * 9 * 11 = 54+66+198 = 318cm³
d) 1m = 10dm 1dm=0,1 m
2 * 3 * 2 + 2 * 2 * 0,1 + 2 * 3 * 0,1 = 12 + 0,4 + 0,6 = 13m³