Question

please answer my question

Answer 1

Total height of cylinder= 90cm
radius=14cm
1.hence. total surface area = CSA of cylinder+ area of top+area of base of cylinder
= 2πrh+πr^2+πr^2
=[2×22÷7×14×90]+[2×22÷7×14^2]
=9152 cm^2
2.volume of cylinder= πr^2h
= [22÷7]×(14)^2×90
=55440 cm^3