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OpenStudy (anonymous):
How many square inches of tin are needed to make the top of a can that is 10 inches in diameter?
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jimthompson5910 (jim_thompson5910):
hint: area of a circle is A = pi*r^2 where A = area r = radius pi = 3.14 (approximately)
jimthompson5910 (jim_thompson5910):
remember that d = 2*r where d = diameter r = radius
OpenStudy (mathmale):
So, Khmer, try putting this all together to determine the area of the can top if the diameter of the can top is 10 units.
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