geometry

posted by .

Find the area of the base and the volume of a cone.
the height is 17 and the radius is 8. my answer needs to be in pie

  • geometry -

    area of the base
    = area of the circle with radius 8
    = π(8^2) = 64π units

    Volume = (1/3)πr^2 h
    = (1/3)π(64)(17) = 544π units^2

  • geometry -

    these are the answer I have to pick from for volume
    1088/3 pi feet cubed
    960 pi feet cubed
    320 pi feet cubed
    1088 pi feet cubed

  • geometry -

    You could have easily seen that I made a calculation error
    (1/3)π(64)(17) is correct,
    but then I must have divided by 2 instead of by 3

    clearly it should have been

    10880π/3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. geometry math

    There is an upside-down cone that is 12m high and has a circular base with a radius of 4m that is being filled with liquid. Make V, the volume, a function of the height of the liquid, h. What is the volume of the cone when the water …
  2. maths

    Im confused can any1 help me on this question ?
  3. Calculus

    Given a right circular cone, you put an upside-down cone inside it so that its vertex is at the center of the base of the larger cone, and its base is parallel to the base of the larger cone. If you choose the upside-down cone to have …
  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, respectively. …
  5. maths-surface area

    A solid is in the form of cone mounted on a hemisphere in such a way that the centre of the base of the cone just coincide with the centre of the base of the hemisphere. Slant height of the cone is L and radius of the base of the cone …
  6. geometry

    A cone has a circular base, a perpendicular height equal to 21cm, and a semi-vertical angle of 30degrees. Calculate the slant height of the cone. Find the area of its base.(take pie to be 22/7)
  7. Calculus

    A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is …
  8. MATH QUIZ PLS HELP!!!

    1.Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for ©£ and round to the nearest tenth. 439.6 ft^2 324.5 ft^2 571.5 ft^2 285.7 ft^2*** 2.Find the surface area of a square pyramid with …
  9. Math

    An inverted right cone, half filled with water. I've only the volume of the entire cone to go from. So the volume of the cone = 1/3 the base area * height I've been told by a friend that the base area of a half scale cone = 1/4 of …
  10. Calculus: Optimization

    I have no idea how to approach this problem, if someone knows just how to relate h, r with H,R, that would be extremely helpful and I can workout the rest! Thank you in advance. Given a right circular cone, you put an upside-down cone …

More Similar Questions