I need to find volume of a compact disc with radius of 60mm, diameter of 120mm and height of 1.2mm Volume = (ð x r2) x H V= 3.141592 X120 X 1.2 452.16 rounded to 452 Is my answer right?

  1. 👍
  2. 👎
  3. 👁
  1. Answer is 135.648 sq. cm
    ie =3.14*60*60*1.2 sq mm

    1. 👍
    2. 👎
  2. Check your formula it should be Rsquared not R2 (60x60) not 2X60

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    A flying disc has a radius of 7 inches. What is the area of one side of the flying disc to the nearest square inch? Use 3.14 as an approximation for pi.

  2. Calculus

    A ball of radius 12 has a round hole of radius 6 drilled through its center. Find the volume of the resulting solid. I tried finding the volume of the sphere and the volume of the cyclinder then subtract however that did not work.

  3. math

    The total weekly cost (in dollars) incurred by Lincoln Records in pressing x compact discs is given by the following function. C(x) = 2000 + 2x - 0.0001x^2 (0≤x≤6000) (a) What is the actual cost incurred in producing the

  4. Math

    Find the diameter and the height of a cylinder of maximum volume which can cut from a sphere of radius 12cm

  1. math

    1. A cylinder has a volume of 375 cubic centimeters. The radius of the cylinder is 12.5 centimeters. What is the approximate height of the cylinder? A. 9.6 centimeters B. 7.5 centimeters C. 2.4 centimeters** D. 0.8 centimeter 2. A

  2. Physics

    A music compact disc does ninety revolutions in one minute. Calculate its angular velocity in rad/s

  3. calculus

    1. A solid is constructed so that it has a circular base of radius r centimeters and every plane section perpendicular to a certain diameter of the base is a square, with a side of the square being a chord of the circle. a. Find

  4. Physics (EMI)

    A metal disc of radius R rotates with angular velocity Omega (w) about an axis perpendicular to its plane passing through its centre in a magnetic field B acting perpendicular to the plane of the disc calculate the induced EMF

  1. physics

    Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 2.85 10-2 m and a thickness of about 7.14 10-3 m. The shear modulus of cartilage is 1.16 107 N/m2.

  2. University Physics

    A hollow copper wire with an inner diameter of 0.60mm and an outer diameter of 1.8mm carries a current of 15A. What is the current density in the wire?

  3. Algebra

    The volume of a right circular cylinder (think of a pop can) is jointly proportional to the square of the radius of the circular base and to the height. For example, when the height is 10.62 cm and the radius is 3 cm, then the

  4. MAth

    A sphere has a surface area of 28.26 in2. Find the diameter in inches, of the sphere. Use PI Question 2 What is the surface area, in square inches, of a sphere with radius 3.5 in.? Use Pi and round your answer to the nearest

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