Math Problem Statement

The volume of this cone is 1,570 cubic inches. What is the height of this cone?

Use ​𝜋 ≈ 3.14 and round your answer to the nearest hundredth. Radius is 10

Solution

To find the height of the cone, we can use the formula for the volume of a cone:

V=13πr2hV = \frac{1}{3} \pi r^2 h

Where:

  • VV is the volume of the cone (1,570 cubic inches),
  • rr is the radius of the base (10 inches),
  • hh is the height (which we are solving for),
  • π3.14\pi \approx 3.14.

Step 1: Substitute known values into the formula

1,570=13×3.14×102×h1,570 = \frac{1}{3} \times 3.14 \times 10^2 \times h 1,570=13×3.14×100×h1,570 = \frac{1}{3} \times 3.14 \times 100 \times h 1,570=104.67×h1,570 = 104.67 \times h

Step 2: Solve for hh

h=1,570104.6715h = \frac{1,570}{104.67} \approx 15

So, the height of the cone is approximately 15 inches.

Would you like further explanation or have any questions?

Here are some related questions you might find interesting:

  1. How does the volume change if the radius is doubled?
  2. What happens to the height if the volume is halved?
  3. Can we use the formula for volume of a cone to calculate the slant height?
  4. How would the volume of the cone change if we used a different approximation for π\pi?
  5. What is the surface area of a cone with this radius and height?

Tip: Remember that the height of a cone is always perpendicular to the base, while the slant height is the distance from the top of the cone to the edge of the base along the cone’s surface.

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Math Problem Analysis

Mathematical Concepts

Geometry
Volume of a cone
Algebra

Formulas

Volume of a cone formula: V = (1/3) * π * r^2 * h

Theorems

Formula for the volume of a cone

Suitable Grade Level

Grades 7-9