zad7 oblicz długość zaznaczonych łuków oraz pola zacieniowanych figur
a-alfa
* - stopni
a) a=90* r=12
b) a=60* r=15
a)
l=alfa:360*2TTr=90:360*2TT12=1:4*24TT=6TTcm
P=alfa:360*TTr2=90:360*144TT=1:4*144TT=36TTcm2
b)
l=alfa:360*2TTr=60:360*2TT15=1:6*30TT=30:6TTcm
P=alfa:360*TTr2=60:360*TT15^2=1:6*225TT=225/6TTcm2
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a)
l=alfa:360*2TTr=90:360*2TT12=1:4*24TT=6TTcm
P=alfa:360*TTr2=90:360*144TT=1:4*144TT=36TTcm2
b)
l=alfa:360*2TTr=60:360*2TT15=1:6*30TT=30:6TTcm
P=alfa:360*TTr2=60:360*TT15^2=1:6*225TT=225/6TTcm2