Sagot :
Cevap:
Çevre 18, Alan 27
Adım adım açıklama:
pi'yi 3 alalım
çevre formülü: 2.pi.r
2.3.3= 18 çevresi = 18
alan formülü: pi.r^2
r nin karesi = 9
3.9= 27 alanı 27
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