One item was a washing board that looked like a pad with lines in it
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Unless your "everyday life" involves work in some area of engineering, you won't use matrices in your everyday life.
how are emeralds use in everyday life
Geometry is used in my everyday life because I see it everyday. Everything I see is practically geometry. There are posters on my classroom wall, there are desks and chairs, tables, and a big nice white board. I guess this is really how I used geometry in my everyday life.
it is used in a washing machine
For that you'll want Google Images, and pulleys,please see link provided.