Rectangle-shaped 80074

Pupils had to stack rectangle-shaped pictures with dimensions of 210mm and 84mm so as to cover the square. What is the smallest square we can cover like this, and how many images do we need?

Correct answer:

a =  420 mm
n =  10

Step-by-step explanation:

x=210 mm y=84 mm  210=2357 84=2237 LCM(210,84)=22357=420  a=LCM(x,y)=LCM(210,84)=420 mm
n=S2S1  n=x ya a=210 84420 420=10



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