This is a picture of the cabinets in my kitchen. The two right angles formed in each corner of the cabinet are a supplementary pair. Right angles' measures are 90 degrees and 90+90= 180 degrees and in order to be a supplementary pair the angles' measures have to add to 180 degrees, which these angle measures do. They are not a linear pair since they are not ajacent and not forming a line. Cabinets are found in every building. They are used for storage of all kinds of items. They are used for storing dishes in my kitchen but can be used to store anything that will fit in them.
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