Find the cost of painting 15 cylindrical pillars of a building at ₹2.50 per square metre if the diameter and height of each pillar are 48 m and 7 metres respectively.
Answers
Answered by
5
Answer:
the answer is 39600/-
Step-by-step explanation:
given
diameter =48m
height =7m
radius. =48/2
=24
curved surface area of a cylinder =2πrh
=2*π*24*7
=44*24
=1056.
the cost of painting cylinders @ 2.5/-=1056*2.5
=2640/-
for 15 cylinders=2640*15
=39600/-
therefore the cost of painting is Rs 39600/-
Similar questions