Długość łuku, pole wycinka.
1. L(alfa) = 45 stopni
r=6m
2. L(alfa) = 120 stopni
r=12 cm
3. L(alfa)=180 stopni
r=8 c,
4. l=?
P=?
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1.
45°:360°∧2πr=1,5π[m]
45°:360°∧πr²=4,5π[m²]
2.
120°:360°∧2πr=8π[cm]
120°:360°∧πr²=48π[cm²]
3.
180°:360°∧2πr=8π[c]
180°:360°∧πr²=32π[c²]