You measure the sides, and multiply the top and side.
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
to calculate the area of the front surface of a box you should
Measure the height and multiply it by the width.
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.
To calculate the surface area of a rectangular box, use the formula: Surface Area = 2(lw + lh + wh), where l is the length, w is the width, and h is the height of the box. Simply plug in the values for length, width, and height to find the total surface area. Make sure to calculate each area of the three pairs of opposite faces and then sum them up, multiplying by 2 to account for both sides.