What is the volume of the cone in cubic centimeters? Use 3.14 for pi. Round your answer to the nearest tenth the 9cm is at top and then the 5cm at bottom

1 answer

To find the volume of a cone, the formula is given by:

\[ V = \frac{1}{3} \pi r^2 h \]

where:

  • \( r \) is the radius of the base of the cone,
  • \( h \) is the height of the cone.

In this case, you have provided the measurements as:

  • The top of the cone (which we will assume is the smaller end) has a diameter of 9 cm, so the radius \( r_1 \) is:

\[ r_1 = \frac{9 , \text{cm}}{2} = 4.5 , \text{cm} \]

  • The bottom of the cone appears to have a height of 5 cm from the top to the base.

To calculate the volume of a truncated cone (frustum), we need the height and the two radii (top and bottom). However, only one radius (the top radius of 4.5 cm) and the height (5 cm) have been given.

If we assume this is a simple cone with height 5 cm, then the truncated cone interpretation might not apply. Conversely, if the bottom radius is actually determined by context, we need that measurement.

Let's assume a scenario where the height (h) is indeed 5 cm and only the radius at the top matters for volume calculation, and it follows that we can ignore the other section or make it minimal as it appears in the top portion only.

So, placing those into the original formula for a basic cone:

  1. Use \( r = 4.5 , \text{cm} \)
  2. Use \( h = 5 , \text{cm} \)

Now substituting into the volume formula:

\[ V = \frac{1}{3} \cdot 3.14 \cdot (4.5)^2 \cdot 5 \] \[ V = \frac{1}{3} \cdot 3.14 \cdot 20.25 \cdot 5 \] \[ V = \frac{1}{3} \cdot 3.14 \cdot 101.25 \] \[ V = \frac{1}{3} \cdot 317.325 \] \[ V \approx 105.775 \]

Rounding to the nearest tenth, the volume of the cone is approximately:

\[ \boxed{105.8 , \text{cm}^3} \]

Similar Questions
  1. Volume of Cones Quick Check1. What is the volume of a cone with a diameter of 20 cm and a height of 15 cm? Use 3.14 for pi.(1
    1. answers icon 3 answers
  2. Volume of Cones Quick Check1 of 51 of 5 Items Question What is the volume of a cone with a diameter of 20 cm and a height of 15
    1. answers icon 1 answer
  3. Volume of Cones Quick Check1 of 51 of 5 Items Question What is the volume of a cone with a diameter of 20 cm and a height of 15
    1. answers icon 1 answer
  4. QuestionWhat is the volume of a cone with a diameter of 12 cm and a height of 11 cm? (1 point) Responses 1,243.44 cubic
    1. answers icon 1 answer
more similar questions