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OpenStudy (anonymous):
a rectangular prism, open at the top, has a length of 14cm, width of 9cm and the surface area is 471cm^2. find the height of the prism
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OpenStudy (anonymous):
working out please..
OpenStudy (anonymous):
2lh+2bh=surf area 2h(l+b)=471 2h*23=471 h=471/(23*2)
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