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p=10√3 [cm]
b) 1 = a√3 /:√3
√3 /3 = a
V = a³ = ³√3 / 27 [m³]
(10√2)²+10²=x²
200+100=x²
300=x²
x=√300
x=10√3
x-przekątna sześcianu
10² + 10√2 = x²
100 + 200 =x²
300 = x²
x=√300 = 10√3
2.
√3:9=0.2