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CBSE Class 8 Answered

find the total surface area of a cylinder if its radius is 25cm and height is 45cm
Asked by darshanvinodkumarpatil | 22 Mar, 2021, 04:55: PM
answered-by-expert Expert Answer
begin mathsize 16px style Here comma space straight r space equals space 25 cm space and space straight h space equals space 45 cm
Total space Surface space Area space of space straight a space cylinder
equals space 2 πr left parenthesis straight h space plus space straight r right parenthesis space
equals space 2 space cross times 22 over 7 cross times 25 open parentheses 45 plus 25 close parentheses
equals 2 cross times 22 over 7 cross times 25 space cross times 70
equals 44 cross times 25 cross times 10
equals space 11000 space cm squared end style
Answered by Yasmeen Khan | 23 Mar, 2021, 12:36: PM
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