If it's just the front surface of a box then it's simply a 2D shape, the area can be calculated by multiplying the length by the width. Answer will be in units squared.
multiply the height by the width
No. If you want the area of a single surface of a box, simply multiply the height by the width of the surface of interest.
You cannot "calculate" the front of a box. You can calculate its dmensions, or its area but calculating it does not make sense. As for calculating its size or area, the answer will depend on what information you have and what you require.
height x length
need to measure the length and width of the front surface, then multiply these two measurements together. This will give you the area of the front surface of the box.
To calculate the area of the front surface of a box, you would multiply the width of the box by the height of the box. This calculation gives you the area of the rectangular front surface.
multiply the length by the height
If it's just the front surface of a box then it's simply a 2D shape, the area can be calculated by multiplying the length by the width. Answer will be in units squared.
multiply the height by the width
No. If you want the area of a single surface of a box, simply multiply the height by the width of the surface of interest.
You cannot "calculate" the front of a box. You can calculate its dmensions, or its area but calculating it does not make sense. As for calculating its size or area, the answer will depend on what information you have and what you require.
height x length
You multiply the length times the width of the surface.
Because a box has 6 faces, the "front surface" is not detailed enough. If you are referring to the surface perpendicular to the ground and is facing you, then you simply multiply the height of the box by the edge of the base on the front surface.
The front surface of a box is a rectangle. If you only need the area of the front surface, then it doesn't even matter what it's part of. Multiply the width of the surface by its height. The answer is its area.
The surface area of each side of the box ( there should be six sides unless it doesn't have a top ) added together will give you the total surface area. The surface area of one side is calculated by multiplying the length and the width. The answer will be in square inches or square centimeters depending on what unit of measure you use.