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21-09-2017
Mathematics

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Write the perimeter of the floor plan shown as an algebraic expression in x.

Write the perimeter of the floor plan shown as an algebraic expression in x class=

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28-09-2017

The perimeter is the sum of the enclosing side.

From the figure, the perimeter is
P = 11 + (x-2) + (11-3) + [(x-2) - (x-11)] + (x-11)
= 11 + x - 2 + 8 + 9 + x - 11
= 2x + 15

Answer: 2x + 15

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