Respuesta :

Answer:

63

Step-by-step explanation:

Each side is bigger by a factor of 9, i.e. 10*9=90, etc.

so 7 * 9 = 63

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The value of x=63, since the second figure is being multiplied by a scale factor of 9 to get the first figure. You can multiply 7 by 9 to get 63, therefore being the length of side x.

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