Question

Question 23 if you can solve plz try

Answer 1

this is your answer..

Answer 2

r = 14 m
h of cylinder = 3 m 
total height = 13.5 m 
so, height of cone = 13.5 - 3 m  =  10.5 m

C.S.A. of cylinder = 2πrh
                                =2 * 22/7 * 14 * 3
                                   = 264 m²

C.S.A. of cone = πrl
so, l = √r²+h²
      l = √14² + 10.5²
      l =  306.25 m 
C.S.A. of cone = 22/7 * 14 * 306.25
                        = 13475 m²

total area to be painted = C.S.A. of cylinder + C.S.A. of  cone
                                      = 264 + 13475 m²
                                      = 13739 m²

Total cost of painting at the rate of Rs 3/ m² = Rs 3* 13739
                                                                      = Rs 41217
          
I HOPE THIS ANSWER WAS HELPFUL TO YOU...................................

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