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Mathematics 8 Online
OpenStudy (anonymous):

A square mosaic is made of small pieces of glass. If there are 400 pieces of glass, how many are along the edge? a.100 b.20 c.200 d.22

OpenStudy (anonymous):

a 100

OpenStudy (luigi0210):

show work

OpenStudy (luigi0210):

and I don't think that's correct

OpenStudy (anonymous):

Its around the edge. Basically perimeter and its a square. What adds up to make 400 all around?

OpenStudy (luigi0210):

thank you

OpenStudy (anonymous):

its not 100

OpenStudy (luigi0210):

at least Vicky gave a reason for her answer

OpenStudy (luigi0210):

and If I'm not mistaken then it's 20. 20*20=400

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