Algebra

posted by .

I need to find the volume of a cylinder. Use 3.14 for pi...I think the answer is 24,501.42 m^2...the picture shown is a cylinder with a diameter of 34m and a heigth of 27m

I know how to work these problems out and I got 24,501.42m^2 but the computer is giving me an answer of 24,523.71...please check my answer...thank you

  • Algebra -

    V = πr^2 h
    = π (17^2)(27) = 24513.84

    using 3.14 for π
    V = 4.14(17^2)(27) = 24501.42
    you are right!

  • Algebra -

    You meant to put 3.14 on the secon part...right?

  • Algebra -

    second part I meant....right??

  • Algebra -

    You did the problem correctly. I am not sure how exactly you entered the numbers into the computer for pi, but it looks like with an answer of 24,523.71 the computer used an approzimation for pi based on the fraction 22/7.

    22/7 = 3.142857....
    If you plug the 22/7 instead of 3.14 you will get what the computer gets...

  • Algebra -

    Thank you Jeff....

  • Algebra -

    I find it very odd, that the "computer" would use 22/7 for the value of π.
    Surely it would have better value than that built in
    Even the cheapest calculator will use about 9 decimal places for accuracy.
    It looks to me that whatever "input routine" they are using, needs an immediate update to bring it into the 21st century.

  • Algebra -

    Reiny, Agreed, but that is what it appears to be using. I am guessing it was a software program and not the actual computer using that approximation.

    What really irks me about pi is that most people know it is 3.1415....., but have NO idea what it actually represents....

  • Algebra -

    BTW Cassie, please please always remember that pi is simply a circle's circumference divided by it's diameter. For every circle, no matter the size...

    This is why it shows up in so many formulas for circles, cylinders, cones, etc.

  • Algebra -

    ok ....thank you

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. mat 116/algebra

    A cylinder has a radius of 5 in. If the volume of the cylinder is 250Ĉ in.3, what is the height of the cylinder?
  2. Math help

    How do you find the volume of a cylinder with a diameter of 34m and a height of 27m?
  3. Chemistry

    A graduated cylinder contains 56.3ml of water. A metal cylinder is dropped in the water and is completely covered by water. The diameter of the cylinder is 3.8 cm and the height of the cylinder in 5.4cm. What is the volume reading …
  4. math help!!!!! Thanks

    Find the volume of the cylinder with a radius of 34m and a height of 27m. This is how I did it can you please tell me if I did it correct, thanks. V= 3.14r^2h = 3.14*34^2*27 = 3.14*1156*27 = 98005.68 If this is not it can you please …
  5. Math

    Hi could you please check my answers? Find the lateral of the square pyramid (I don't have a picture so I'll describe the figure) the square base is 8m around each side of the square and the slant height is 22m, my answer is 352 cm^2.
  6. Math

    Find the volume of the cylinder. Use 3.14 for Pi Diameter is 34m Height 27m
  7. Math, Algebra (fast help would be nice)

    So I did this whole math test and before I could hit "finish", my computer died and nothing saved. I have no memory of how I figured them out. Could you guys help please?
  8. Math, Algebra

    I asked these questions yesterday and thanked whomever helping me before clicking the links. When the links were just google searches, however, they didn't help me seeing as I already did that. The google search calculator doesn't …
  9. Maths

    Cylinder A is eight time as tall as cylinder B, but the diameter of cylinder B is four times the diameter of the cylinder A. Which cylinder has larger volume?
  10. Geometry

    A cone has diameter 12 and height 9. A cylinder is placed inside the cone so the base of the cylinder is concentric with the base of the cone and the upper base of the cylinder is contained in the surface of the cone. If the volume …

More Similar Questions