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According to the diagrams below, how long is each unknown piece? Homework Help ✎

  1. How long is the entire length?
    Which part is mm?
    Try to answer the question with these things in mind.

    How long is the unknown length?

    mm, because .

  1. How long is the shorter unknown length?

    The shorter length is mm. Explain why on your paper.

    Now use the same method to find the entire length.