please tell the answer
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Step-by-step explanation:
This is a very easy question......
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Step-by-step explanation:
perimeter=77
x+1+x+1+x+2+2x+1+2x+2=77cm
7x+7=77cm
7x=77-7
7x=70
x=70/7
x=10cm
..the value of x =10
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