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h=a√3/2 => r=a√3/3=10√3/3
L=2πr=20π√3/3
r=1/3h
h=a√3/2 => r=a√3/6=5√3/6
L=2πr=10π√3/6
dane:
a=10cm
r=2/3h
h=a√3/2 => r=a√3/3=10√3/3
l=2πr=20π√3/3
r=1/3h
h=a√3/2 => r=a√3/6=5√3/6
l=2πr=10π√3/6
a-bok
h- wysokość
l - długość okręgu