# If #pi# equals #22/7# and the radius of a circle is #1##3/4# in, what is the circumference?

Approximately

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Using the formula for the circumference of a circle:

[ C = 2 \pi r ]

Substitute the given value of ( \pi = \frac{22}{7} ) and the radius ( r = \frac{13}{4} ):

[ C = 2 \times \frac{22}{7} \times \frac{13}{4} ]

[ C = \frac{44}{7} \times \frac{13}{4} ]

[ C = \frac{572}{28} ]

[ C = \frac{143}{7} ]

Therefore, the circumference of the circle is ( \frac{143}{7} ) inches.

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