Posted by **Joe** on Tuesday, January 31, 2012 at 8:11am.

A classroom table is 1 m wide and 1.75 m long. How many 39 cm wide chairs can fit around the table?

- Measurement:: Metric Units -
**Jai**, Tuesday, January 31, 2012 at 8:17am
to do this, you get the perimeter of the table.

recall that the perimeter of a rectangle is given by,

P = 2*L + 2*W

where

L = length

W = width

substituting,

P = 2(1.75) + 2(1)

P = 3.5 + 2

P = 5.5 meters

then we convert this to centimeters. note that

1 meter = 100 centimeters

therefore 5.5 m = 550 cm

finally we divide 550 by 39 to get the number of chairs that could fit:

550/39 = 14.102

but since there is no 'decimal' chairs, we only take the whole number which is 14 chairs.

hope this helps~ :)

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