silver coin diameter is 40 mm, and surface area 27.70 cm 2 . if the coin divided to coins with 1 nm diameter; what is the surface area for all these coins? how many times greater than the surface area of the large one?
But why we want to take only 7 ? In this we multiply the no.6×1 or we plus 3 4 Both ans come into 7 . So kn this I am confused That to plus or multiply
The angle of elevation of the top of unfinished vertical building on a ground at a point which is 100m from the base of the building must be raised, so that its angle of elevation from the same point be 60
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