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NikiChan11
@NikiChan11
August 2022
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номер 7 и 8 даю 100 баллов
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Flash3146
#2
a-2x
b-x
c-2x*3
S=2(ab+ac+bc)
2(2x*x+2x*6x+x*6x)=1000
2(2x²+12x²+6x²)=1000
2*20x²=1000
40x²=1000:40
x²=25
x=5(м)-b
a=5*2=10(м
c=10*3=30(м)
сумма ребер=4(a+b+c)
4(30+10+5)=45*4=180(м)
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Answers & Comments
a-2x
b-x
c-2x*3
S=2(ab+ac+bc)
2(2x*x+2x*6x+x*6x)=1000
2(2x²+12x²+6x²)=1000
2*20x²=1000
40x²=1000:40
x²=25
x=5(м)-b
a=5*2=10(м
c=10*3=30(м)
сумма ребер=4(a+b+c)
4(30+10+5)=45*4=180(м)