melisaram12 melisaram12

22-04-2019
Mathematics

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please, I need to know how this question is done. please

please I need to know how this question is done please class=

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starlipika starlipika

22-04-2019

subsitute x = 6 into the lengths

3(6) -7

18 - 7

11cm

(6) + 5

11cm

therefore it is a square when x = 6 because the sides are all equal

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