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form_title= Photo Frames form_header= Display your memories with photo frames! What are the sizes of your photos?*= _ [50] What are the dimensions of your desired frames?*= _ [50] How many frames do you want?*= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, More than 10}
You need to know the width and height in some other unit, and then apply the appropriate conversion factor. For example, if you know the dimensions in inches, then multiply each one by 2.54 in order to find the same length in centimeters. If you know the dimensions in feet, then multiply each one by 30.48 . If you know the dimensions in millimeters, then divide each one by 10 . . . etc.
On paper = 2 dimensions Physical = 3 dimensions Examples: a square is 2 dimensions and a cube is 3 dimensions a circle is 2 dimensions and a ball is 3 dimensions
A ray can be in 2 dimensions, in 3 dimensions, or in fact in any number of dimensions.
the plane, or xy plane, has two dimensions space has 3 dimensions