Sonar is probably right around the corner from you in the nearest hospital or medical clinic. Even some doctor's offices have the units on hand, as well as some veterinary clinics. It finds its broadest application in medical imaging. Use the link to the related question of the uses of sonar to see where else it may be used.
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how are emeralds use in everyday life
Unless your "everyday life" involves work in some area of engineering, you won't use matrices in your 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.
You eat it......
it is used in a washing machine