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Posted by on Friday, March 30, 2012 at 4:22pm.

A model airplane is made on a scale of 1:128.

A)What is the scale factor of the model?


B)If the airplane has a wingspan of 30 cm, what is the wingspan of the actual airplane

Need help on this.

  • Math11 - , Friday, March 30, 2012 at 4:44pm

    A)

    1 / 128


    B )

    30 * 128 = 3840 cm = 38.4 m



    Remark:

    1 m = 100 cm

    3840 cm / 100 cm = 38.4 m

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