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CBSE Class 10 Answered

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Asked by pentikalyanram | 22 Dec, 2022, 08:12: PM
answered-by-expert Expert Answer
Curved surface area = ( begin mathsize 14px style pi end style r l )
 
where r is radius of base and l is slant height
 
Curved surface area = ( begin mathsize 14px style pi end style r l ) = 12320 cm2
 
slant height = 12320 / ( begin mathsize 14px style pi end style r ) = 12320 / ( begin mathsize 14px style pi end style 56 ) = 70.03 cm
 
Height of cone, h = begin mathsize 14px style square root of l squared minus r squared space end root space equals space square root of left parenthesis 70.03 right parenthesis squared minus space left parenthesis 56 right parenthesis squared end root space equals space 42.05 space c m end style

Answered by Thiyagarajan K | 22 Dec, 2022, 10:09: PM

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