Respuesta :

Answer:

3.14(5²) + 3.14(5s) = 329.7

25 + 5s = 105

5s = 80

s = 16 cm

16 goes into the box.

To find the slant height of a cone, we need to use the formula for the surface area of a cone and then solve for the slant height.

The formula for the surface area of a cone is:

Surface Area = πrl + πr^2

Where:

- r is the radius of the base of the cone

- l is the slant height of the cone

Given that the surface area of the cone is 329.7 square centimeters, let's denote r as the radius of the base of the cone and l as the slant height.

Now, we'll set up the equation using the given surface area:

329.7 = πr(l + r)

To solve for the slant height (l), we need to isolate it in the equation. Let's first express r in terms of l using the formula for the slant height:

r = √(l^2 - h^2)

Where h is the height of the cone.

Now, substitute the expression for r into the equation for the surface area:

329.7 = π√(l^2 - h^2)(l + √(l^2 - h^2))

This equation involves both l and h, which makes it more complex to solve without knowing the height of the cone. If you provide the height of the cone, I can assist you further in solving for the slant height.