A jar lid has a diameter of 42 millimeters. What is the circumference of the lid? Use 22/7 for 3.14

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HSJ · Answer 1 · 2017-02-26T10:06:19+0000

the formula for the circumference of a circle is 3.14 times the diameter,

so the circumference would be 42 x 3.14

42mm x 3.14 = 131.88mm

131.88 milimeters = 13.188 centimeters.

A jar lid has a diameter of 42 millimeters. What is the circumference of the lid? Use 22/7 for 3.14

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