Evaluating expressions with variables word problems

Algebra
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The expression 

4x4x gives the perimeter of a square with a side length of xx units.
What is the perimeter of a square with a side length of \dfrac5775 units?
May 29th, 2015

Perimeter is the sum of all the four sides of a square . Since all the four sides of a square is same therefore the perimeter will be = 4 times of its sides ...

If the Side length of a square is 1 cm then ;;     perimeter = 1+1+1+1 = 4 cm 

If the Side length of a square is 5 m then ;;  perimeter = 5+5+5+5 = 20 m 


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May 29th, 2015

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May 29th, 2015
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