raggio r =188,4/6,28 = 30,00 cm
corda AB = 2√r^2-d^2 = 2*6√5^2-4^2 = 12*3 = 36 cm
r=30 c/2=V 30^2-24^2=18 c=18*2=36
@pier_effe 👍👌
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