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Math

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Hat sizes are determined by measuring the circumference of the head in either inches or centimeters?
use ratio and proportions to complete the following table

Hat size =7 Head circumference inches = 22 and Centimeters =56

and If hat size was 6 3/4 Head circumference in inches would = ? and in centimeters would = ?

  • Math -

    Size 7 --> 22 in --> 56 cm
    Size 1 --> 22/7 in (3.14 in) --> 56/7 cm (8 cm)

    Thus:

    Size 6 3/4 --> 3.14 * 6 3/4 in --> 8 * 6 3/4 cm

    = about 21.2 in. --> 54 cm

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