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h-wysokość w podstawie
h = 6√3/2
h = 3√3
2/3 h = 2/3*3√3 = 2√3
H²+(2/3h)² = b²
b² = 2²+(2√3)²
b² = 4+4*3
b² = 16
b = √16
b = 4 cm
h=6√3 kreska ułamkowa 2
h=3√3
⅓h=√3
2²+√3²=x²
4+7=x²
x=√7
Odp.B