Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 8: Measure Figures; Lesson 6: Surface Area of Prisms


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Find the surface area of each prism. Round to the nearest tenth if necessary.

  • Question 17 (request help)

    If one gallon of paint covers 350 square feet, will 8 gallons of paint be enough to paint the inside and outside of the fence shown once? Explain.

    • Yes
    • No
  • Question 18 (request help)

    The attic shown is a triangular prism. Insulation will be placed inside all walls, not including the floor. Find the surface area that will be covered with insulation.

  • \(SA=\)    \(ft^2\)
  • Question 19 (request help)

    Be Precise To the nearest tenth, find the approximate amount of plastic covering the outside of the CD case.

  • \(SA=\)    \(in^2\)

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