when we use C.S.A or T.S.A
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We use CSA to find curved surface which is in sq.units which is used to find the area of outer side and bases of solids
We use TSA to find total surface area which is also in sq.units which is used to find the area of both sides inner and outer
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CSA :
•CSA is curved surface area
Curved surface area of any solid is calculated when area of base is not included.
•CSA for different solids are different
CSA for Cube = 4a²
where a is side of cube
•CSA for cuboid = 2(lb+bh)
where l , b & h are length , breadth, height of cube respectively .
•CSA of cylinder = 2πrh
where r & h are radius & height of cylinder respectively
•CSA of cone = πrl
where r & l are slant height of cone respectively
•TSA :
•TSA is total surface area ,
Total surface area of any solid is calculated when area of base is not included.
•TSA for different solids are different
•TSA for Cube = 6a²
where a is side of cube
•TSA for cuboid = 2(lb+bh+hl)
where l , b & h are length , breadth, height of cube respectively .
•TSA of cylinder = 2πr(h+r)
where r & h are radius & height of cylinder respectively
•TSA of cone = πr(l+r)
where r & l are slant height of cone respectively