Glass mosaic

How many dm2 glasses are necessary to produce 97 slides of a regular 6-gon, whose side has a length 21 cm? Assume that cutting glass waste is 10%.

Correct answer:

S =  203.7528 dm2

Step-by-step explanation:

q=1+10010=1001 100+10010=100100+10010=100100+10=100110=1011=1.1 n=97 a=21 cm dm=21:10  dm=2.1 dm  h=a2(a/2)2=2.12(2.1/2)21.8187 dm  S1=2a h=22.1 1.81871.9096 dm2  S=n q S1=97 1.1 1.9096=203.7528 dm2

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