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Sagot :
Answer: A=2πrh+2πr2=2·π·10·2+2·π·102≈753.98224
Step-by-step explanation:
Answer:
69.115 mm^2
Step-by-step explanation:
r=d/2
r=2/2
r=1
SA=2pirh+2pir^2
SA=2pi*1*10+2pi*1^2
SA=20pi+2pi
SA=22pi
SA=69.115 mm^2
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