MATHS

Asked by AlexIf 1 million alveoli have a surface area of 0.25m sq, then to work out the total surface area of 280 million you’ll have to multiply 0.25 by 280. No. of alveolI: SA of alveoli 1 million. : 0.25m sq 280 million. : 70m sq The scale factor on the left is 280, and so will it be for the right. Hope this helps.

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