Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys


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  Extra Practice  

Copy and Solve For Exercises 14-27, show your work and answers on a separate piece of paper.

Find the lateral area and the total surface area of each cylinder. Round to the nearest tenth.

  • Question 14 (request help)

  • Lateral Area:     \(\text{ft}^{2}\)
    Surface Area:     \(\text{ft}^{2}\)
  • Question 15 (request help)

  • Lateral Area:     \(\text{cm}^{2}\)
    Surface Area:     \(\text{cm}^{2}\)
  • Question 16 (request help)

  • Lateral Area:     \(\text{m}^{2}\)
    		Surface Area:     \(\text{m}^{2}\)
  • Question 17 (request help)

    A lamp shade is in the shape of a cylinder with a height of 18 inches and a radius of \(6\cfrac{3}{4}\) inches. Fabric will cover the lateral area of the lamp shade. Find the area of the fabric needed. Round to the nearest tenth.
  •     \(\text{in.}^{2}\)

Use Math Tools Estimate the surface area of each cylinder.

  • Question 21 (request help)

    The mail tube shown is made of cardboard and has plastic end caps. Approximately what percent of the surface area of the mail tube is cardboard?
  • Approximately     %
  • Question 22 (request help)

    Persevere with Problems A hot cocoa canister is a cylinder with a height of 24.5 centimeters and a diameter of 13 centimeters.

    a. What is the lateral area of the hot cocoa canister to the nearest tenth?
  •     \(\text{cm}^{2}\)
  • Question 22 (request help)

    b. How does the lateral area change if the height is divided by 2?
  • Type below:

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