0,25 m² = 2500 cm²d = 30cmH = 15cma = 15√3cmPc = 2Pp + PbPc = 2a² +4 aHPc = 2*(15√3)² + 4*15√3 *15Pc = 2*225*3 + 4*225√3 Pc ≈ 1350+1559Pc ≈ 2909cm²
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0,25 m² = 2500 cm²
d = 30cm
H = 15cm
a = 15√3cm
Pc = 2Pp + Pb
Pc = 2a² +4 aH
Pc = 2*(15√3)² + 4*15√3 *15
Pc = 2*225*3 + 4*225√3
Pc ≈ 1350+1559
Pc ≈ 2909cm²
Odp. Nie starczy papieru.