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Find the surface area 729 height,413 length, 447 width, A.1 589 B.9534 C.811,551 D.1,623,102
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Apr 21, 2016
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Find the surface area 729 height,413 length, 447 width, A.1 589 B.9534 C.811,551 D.1,623,102
Mathematics
middle-school
Behzad Rabiei
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surface area=2(legnth times width)+2(legnth times height)+2(height times width)
this is because there are 6 faces and 2 are idencical, assuming this is a regular rectangular prism.
subsitute
SA=2(413 times 477)+2(413 times 729)+2(729 times 447)=2(197001)+2(301077)+2(325863)=394002+602154+651726=1,666,842
the surface area is closest to D
Charles Srstka
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Apr 25, 2016
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