Oblicz obwód wycinka kołowego o mierze kąta 45 stopni i o promieniu 1,4m.
a = 45 stopni
r =1,4m
l =?
l =a/360 *2pi*r
l =45/360 * 2 * 3,14 * 1,4m =1,099m
l =ok.1,1m
Obw.= (π1.4)*(45:180)=1,099m
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a = 45 stopni
r =1,4m
l =?
l =a/360 *2pi*r
l =45/360 * 2 * 3,14 * 1,4m =1,099m
l =ok.1,1m
Obw.= (π1.4)*(45:180)=1,099m