This is a picture of a keyboard which contains more than 3 coplanar parallel lines (five are highlighted in magenta). These lines between the keys all lie on the same plane, they all have the same slope, but since they are a certain distance apart they will never intersect. The lines could be extended as far as needed and they still would not intersect. This picture is one I took of my MacBook keyboard in my house. Keyboards are used to type with computers, both laptop and desktop, along with tablets. Keyboards play a big role in professions such as graphic designer, cyber security technician, and writer.
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