The flight path of an airplane right after
takeoff has a run of 100 yards and a rise of
20 yards. which could be the slope of the
flight path?

any school based questions?

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artists need to create a realistic interpretation so that people in general can relate to the artwork. for a common people, an artist's impression gets increased only if he can create something which would look realistic. an abstract is difficult for a common people to understand whereas if a person can draw a girl with simple pencil sketch and if that looks like a real figure then the latter will be praised more than the former.