Question

अपने पिताजी को एक पत्र जिसमें अपनी शिक्षा प्रकृति और लक्षित का उल्लेख हो​

Answer 1

Answer:

Solution:

Let h be the height and r be the radius of a cylindrical tank.

Height of cylindrical tank, h = 1m

Radius = half of diameter = (140/2) cm = 70cm = 0.7m

Area of sheet required = Total surface are of tank = 2πr(r+h) unit square

= [2×(22/7)×0.7(0.7+1)]

= 7.48

Therefore, 7.48 square meters of the sheet are required.