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1st ANSWERER GETS BRAINLIEST even if their wrong

Find the missing dimension. Use the scale factor 1 : 12.
Item Model Actual
Football helmet Diameter: mm Diameter: 21 cm

Respuesta :

Answer:

1.75...?

Step-by-step explanation:

Uhh... Well if you're that desperate I'll try it.

If the actual football diameter is 21

Plug it into 1 : 12

x : 21

x / 21 = 1 / 12

12x = 21

x = 7 / 4

I don't really understand what the problem's asking though so this is probably wrong.

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