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13 March, 08:27

The graphite in a pencil has a diameter of 1.5 millimeters and is surrounded by wood that is 2 millimeters thick. what is the distance around the pencil? use 3.14 for ππ. round to the nearest millimeter.

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  1. 13 March, 09:13
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    17mm is the answer.

    To solve this:

    1.) Find the radius of the entire pencil.

    The radius of the graphite is. 75 (half the diameter) and the thickness of the wood is 2, so 2 plus. 75 gives you a total radius of 2.75.

    2.) Using this radius, find the circumference of the entire pencil using the equation C = 2 • pi • r.

    C = 2 • pi • r

    C = 2 • 3.14 • 2.75

    C = 17.27 (17 is the answer after rounding to the nearest millimeter)
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