Question

Ncert ex-13.6 question no.6

Answer 1

Answer:

Step-by-step explanation:

the capacity of the closed cylindrical vessel of height 1m is 15.4 litres

v=15.4 litres=15400cm3 and h=1m=100cm

as per question

22/7*r2*100=15400

r2=15400*4/22*100

r2=root 49

r=7

area of the metal sheet requried=2*pie*r*h+2*pie*r2

                                                       =2*pie*r(h+r)

                                                        =2*22/7*7*107

                                                         =4708/10000 m2

                                                          =0.4708m2