Question

plz solve the following question ​

Answer 1

Step-by-step explanation:

Area of cloth required =2πrh+πr √r^2+H^2

= 2πrh+πr √r^2 +H^2

= πr[2h√r^2+H^2]

= 22/7 ×14 [ 2×3+√(14)^2 + (10.5)^2 ]

= 44×23.5=1034m^2

Cost of cloth = Rs.(1034×80) = Rs.82720

Answer 2

Step-by-step explanation:

CSA of cone=πrl

slant height l=√r2+h2

l=19.4

22/7×14×19.4

=5975.2/7

=853.6.

cost of painting=853.6×4

=3414.4