How many square feet of wrapping paper do you need . To wrap a package it is 3.5 feet long 18 inches wide and 2 feet high

there are 3 pairs of faces, each a rectangle. So, the area is

2(3.5*1.5 + 3.5*2 + 1.5*2)

Of course, that does not include any overlap for taping things shut...

L = 3.5 Ft.

W = 18 1n. = 1.5 Ft.
h = 2 Ft.

As = 2(W*h) + 2(L*h) + 2(L*W).
As = Surface area.

To calculate the amount of wrapping paper needed, we first need to convert the dimensions to the same unit.

The length is already in feet (3.5 ft), but the width and height need to be converted to feet as well.
Given that 1 foot is equal to 12 inches, we can convert the width and height into feet as follows:

Width: 18 inches = 18/12 = 1.5 feet
Height: 2 feet (no conversion needed)

Now, we can calculate the total area of the wrapping paper needed by finding the surface area of the package (excluding the base):

Surface area = 2 * (length * width + width * height + length * height)

Substituting the values:

Surface area = 2 * (3.5 * 1.5 + 1.5 * 2 + 3.5 * 2)
= 2 * (5.25 + 3 + 7)
= 2 * 15.25
= 30.5 square feet

Therefore, you would need approximately 30.5 square feet of wrapping paper to wrap the package.

To determine the amount of square feet of wrapping paper needed, you first need to calculate the surface area of the package. The surface area of a rectangular package can be found by calculating the area of each side and then summing them up.

Given that the package is 3.5 feet long, 18 inches wide, and 2 feet high, we need to convert the measurements to a unified unit. Let's convert 18 inches to feet, since the rest of the measurements are already in feet.

18 inches = 18/12 = 1.5 ft

Now, we can calculate the surface areas:

- Front and back sides: 3.5 ft * 2 ft = 7 ft² * 2 = 14 ft²
- Top and bottom sides: 3.5 ft * 1.5 ft = 5.25 ft² * 2 = 10.5 ft²
- Sides: 1.5 ft * 2 ft = 3 ft² * 2 = 6 ft²

Adding up all the areas:

Front/back + top/bottom + sides = 14 ft² + 10.5 ft² + 6 ft² = 30.5 ft²

Therefore, you would need approximately 30.5 square feet of wrapping paper to wrap the package.