Question

Difference between flat surface area and curved surface area

Answer 1

hey.....
The curved surface area is thearea of all the curved regions ofyour solid. ... If the object has both curved surface and flat surface then the curved surface area will be area of only thecurved surface but the lateral surface area will include thecurved area and the flat areaexcluding the base/bases.

Answer 2

curved surface area is used for measuring the area of the curved surfaces like  cone cylinder circle etc..

flat surface area is used to measure the area of flat surfaces like rectangle ,square etc.