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h - wysokość = 2√3
Pp - pole podstawy = a²√3/4 = 10²√3/4 = 100√3/4 = 25√3
Pb - pole powierzchni bocznej = 3 * a * h = 3 * 10 * 2√3 = 60√3
Pc - pole powierzchni całkowitej = 2 * Pp + Pb = 2 * 25√3 + 60√3 =
= 50√3 + 60√3 = 110√3