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Question

Find the perimeter of triangle whose sides are 2x + y, 3x + 2y and –x + 2y.


A

4x – 5y

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B

4x + 5y

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C

6x – 5y

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D

6x + 5y

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Solution

The correct option is B

4x + 5y


Perimeter of triangle = Sum of the sides

= (2x + y) + (3x + 2y) + (– x + 2y)

= (2x + 3x – x) + (y + 2y + 2y)

= 4x + 5y


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