8.7 The student will investigate and solve practical problems involving volume and surface area of cones.

Questions

1.Find the volume and surface area for 5 different cones.


2. Find the missing dimesion. Round to the nearest unit.

a. Cone: volume 424 cubic meters, diameter 18 meters, height ___

b. Cone: surface area 153.5 sq in, radius 4 in, slant height ___


3. Plants: A cone-shaped paper cup is 7 cm high with a diameter of 6 cm. If the ivy plant on Julia's desk needs 240mL of water, about how many paper cups of water will she use to water it? (1 mL = 1 cubic cm)

More Practice

Spreadsheet

Hands-On Activities

  • LearnAlberta.ca This interactive web site allows the user to explore the concepts of surface area, volume, 3D shapes and nets. Includes print and video activities.

Other Web Sites

  • Edhelper Here are 36 problems on a worksheet for students to practice finding volume of prisms, cylinders, cones, pyramids and spheres.
  • ExploreLearning Teachers have to assign the Pyramids and Cones-Activity A to their classes. Students should read the Exploration Guide.
  • Larson´s Software Students need to be enrolled by their teachers. Click on the Geometry in Space, then click on Volume of a Cone. Do the See It, Try It, and Zap It.

Lesson 3-3: Right Circular Cone

Use this worksheet to practice finding the Volume and Surface Area of a Right Circular Cone. Adjust the height and radius using the labeled sliders. Answer the questions on the right. The multi-colored switches can be used to check your work.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and activated. (click here to install Java now)

Created with GeoGebra by Lewis Prisco