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mosthatedpicky1
21.04.2021 •
Mathematics
Abbey read of a chapter in of an hour.
Part A
How many chapters will Abbey read in 1 hour?
chapters/hour
Part B
How many chapters will Abbey read in 4 hours?
Solved
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Ответ:
Assuming the bottom of the cone is closed.
r = r/2, l = 2l
Total surface Area = π*(r/2)*2l + π(r/2)² = πrl + πr²/4
Total Surface Area = πrl + πr²/4