Oblicz pole koła o promieniu 10 cm. ( przyjmij π≈3,14 )
dzięki <3 xD
r = 10cm
P = πr²
P = π · 10²
P = 3,14 · 100
P = 314 [cm²]
Odp: Pole tego koła wynosi 314 cm².
P_koła = πr² = π * 10² = 100π ≈ 100*3,14 ≈ 314 cm²
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r = 10cm
P = πr²
P = π · 10²
P = 3,14 · 100
P = 314 [cm²]
Odp: Pole tego koła wynosi 314 cm².
P_koła = πr² = π * 10² = 100π ≈ 100*3,14 ≈ 314 cm²