Question

Find the cost of painting 20 cylinder pillars of a building atruppes 3.5 per square meter.if the diameter and height of each pillar are 44cm and 7m resp

Answer 1

Step-by-step explanation:

HEY MATE ..

ANSWERGiven length or height of pillar =3.5mRadius of each pillar =36cmCSA of pillar =2πrh=2π×0.36×3.5CSA=7.91m ^2

Now total area to be painted =7.91×20

Now total area to be painted =7.91×20Total Area =158.20m ^2

Cost of painting =158.20×3=474.60.