oblicz pola zamalowanych cześci kół .
(bez podpunktu a )
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b) PΔ = 2 * 2 / 2 = 2
P wyc = 90°/360° * π2² = 1/4 * 4π = π
Pf - π - 2
c) PΔ = a²√3/4 = 4√3/4 = √3
P wyc = 60°/360° * π2²= 1/6 * 4π = 2/3π
Pf = 2/3π - √3