math

A cone has a radius of 6 inches and a height of 9 inches
a) calculate the volume of the cone. use pi. as my answer for part a i got 339.92 cubic inches,,,,,,, Is my answer correct ??
I need help doing part b and c.
b) calculate a possible radius and height of a cylinder that has the same volume as the cone.
c) If the radius of the cylinder is the same as the radius of the cone, what is the height of the cylinder?

  1. 👍
  2. 👎
  3. 👁
  1. v = pi/3 r^2 h = pi/3 * 36 * 9 = 108pi

    for cylinder,
    v = pi r^2 h, so a cylinder 1/3 as high would have the same volume as the cone.

    see above. same radius, 1/3 height.

    1. 👍
    2. 👎
  2. thank you very much - Steve

    1. 👍
    2. 👎
  3. What is the volume of a cone that has a radius of 9 inches and a height of 16 inches? Use 3.14 for pi

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Geometry

    1.What is the perimeter of a rectangle with width 10 inches in length 13 inches? A.23inches B.36inches C.46inches*** D.130inches 2.What is the area of a triangle with base 19 inches and height 11 inchinches? A.209square inches

  2. Math

    Which describes the collection of all points in the same plane that are 8 and 1/2 inches from Point T? circle T with radius 8 and 1/ 2 inches circle T with diameter 8 and 1/2 inches circle T with radius 17 inches a sphere with

  3. Geometry/Math

    Two right circular cylinders have equal volume. The first cylinder has a radius of 6 inches and a height of 12 inches. What is the number of inches in the height of the second cylinder if its radius is 8 inches? Express your

  4. math

    Two right circular cone, one upside down in the other. The two bases are parallel. The vertex of the smaller cone lies at the center of the larger cone’s base. The larger cone’s height and base radius are 12 and 16 ft,

  1. algebra

    volume of cone varies jointly as square of its radius and its height if volume of a cone is 27pie cubic inches when radius is 3 inches and height is 9 inches find volume of a cone when radius is 4 inches and height is 3 inches

  2. algebra

    The volume of a cone is 48 cubic inches. The radius is 1.3 meters. Determine the height of the cone. Use 3.14 for π. Round your answer to the nearest tenth. Show all your work. please help me im stuck and im not even sure where

  3. Algebra 2

    You are designing a kit for making sand castles. You want one of the molds to be a cone that will hold 48π cubic inches of sand. What should the dimensions of the cone be if you want the height to be 5 inches more than the radius

  4. math

    a rectangular container with dimensions 10 inches by 15 inches by 20 inches is to be filled with water, using a cylindrical cup whose radius is 2 inches and whose height is 5 inches, what is the maximum number of full cups of

  1. Math

    A conical paper cup is to have a height of 3 inches. Find the radius r of the cone that will result in a surface area of 6ðin^2.

  2. mathematics

    The volume of a cone is image cubic inches. If the radius is 5 inches, what is the height of the cone?

  3. algebra

    The volume of a cone varies jointly as the square of its radius and its height. If the volume of a cone is 50π cubic inches when the radius is 5 inches and the height is 6 inches, find the volume of a cone when the radius is 4

  4. Algebra

    The cone shown has a height of 5 inches and a radius of 1.5 inches. What is the approximate volume of the cone? A. Between 11 and 12 cubic inches B. Between 15 and 16 cubic inches C. Between 35 and 36 cubic inches D. Between 39

You can view more similar questions or ask a new question.