The width of an object is based upon how wide it is. For example if you wanted to measure the width of a table, get a long ruler and measure it from the front. It may seem similar to length but its not.
Most books have rectangles for their front covers, so Area = length x width. Measure the width across the top edge of the front cover, then the length down the spine edge of the front cover (the left side of the front for most books produced in the Americas and Europe). Multiply the length by the width and you will have the area of the front cover.
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.
To measure an office chair, typically you would measure the height, width, and depth of the chair. The height is measured from the floor to the top of the backrest, the width is measured at the widest point of the chair, and the depth is measured from the front of the seat to the backrest.
Both websites of Overstock and Surefit provide directions to measure the couch. From Overstock:Measure the Length. First, measure your sofa from the outside of one arm to the outside of the other arm. ...Measure the Seat Cushions. Measure the cushion width in the front of the sofa. ...Measure the Width of the Sofa. ...Measure the Cushion Height. ...Measure the Full Height.
Width refers to the base of a geometric shape. Height is from top to bottom, while length and width, which are interchangable, are strictly side to side on the bottom.
-- Measure the height.-- Measure the width at the top.-- Measure the width at the bottom.Area = (1/2) x (height) x (width-at-the-top plus width-at-the-bottom)
For a rectangle, length X width = area. Measure the length in cm. Measure the width in cm. Multiply the length X the width to get the area in cm2.
Tape measure....
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.
A package is likely a rectangle of some sort. The volume of a rectangle is calculated by the product of the length, height, and width of the package.
appropriate unit to measure the width of a textbook = ce ntimeters