Question

The area of metal sheet required to make a closed cylinder of height 1 m and base diameter 140 cm is ------------ sq.m *

Answer 1

Answer:

let r be tge radius of the base and h be the height of the cylinder

base diameter = 140cm and height (h) =1m

radius of base (r) = 140/2 =70cm =0.7 m

metal sheet required to make a closed cylindrical tank =2pie r(h+r)

= (2x22/7x0.7)(1+0.7)m2

= 7.48m2

Step-by-step explanation:

Hope it helps you