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 14-35, show your work and answers on a separate piece of paper.

Find the lateral area of each cone. Round to the nearest tenth.

  • Question 20 (request help)

    Find the lateral area of a cone with a radius of 3.5 millimeters and a slant height of 8 millimeters. Round to the nearest tenth.
  •     \(\text{mm}^{2}\)
  • Question 21 (request help)

    Find the lateral area of a cone with a radius of 9 inches and a slant height of 16 inches. Round to the nearest tenth.
  •     \(\text{in.}^{2}\)

Find the surface area of each cone. Round to the nearest tenth.

  • Question 24 (request help)

    Find the surface area of a cone with a diameter of 20 millimeters and a slant height of 42 millimeters. Round to the nearest tenth.
  •     \(\text{mm}^{2}\)
  • Question 25 (request help)

    Find the surface area of a cone with a radius of 5.1 feet and a slant height of 17 feet. Round to the nearest tenth.
  •     \(\text{ft}^{2}\)
  • Question 26 (request help)

    Reason Abstractly A conical hat has a radius of 7 inches and a height of 14 inches. Find the slant height of the hat. Then find the lateral area. Round to the nearest tenth.
  •     \(\text{in.}^{2}\)

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