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eroshea
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The weight of a piece of crystal in the form of a regular dodecahedron is 360 lbs., and each of its edges is 10 inches long. What is the weight of a similar piece of crystal whose edge edge measures 16 in.?
 one year ago
 one year ago
eroshea Group Title
The weight of a piece of crystal in the form of a regular dodecahedron is 360 lbs., and each of its edges is 10 inches long. What is the weight of a similar piece of crystal whose edge edge measures 16 in.?
 one year ago
 one year ago

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hartnn Group TitleBest ResponseYou've already chosen the best response.2
for same density, weight is proportional to volume and volume is proportional to cube of side. hence, weight is proportional to cube of side W1/W2 = S1^3/S2^3 360/W2 = (10/16)^3 u get W2=1474.56
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
welcome ^_^
 one year ago
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