The outer diameter of a gas cylinder is 20 cm. Find the cost of the painting of its
outer curved surface at * 4 per square centimetre if the height of the cylinder is
70 cm.
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Answered by
59
Answer:
Rs 17600
Step-by-step explanation:
outer Radius R = 20/2 = 10cm
height h = 70cm
CSA = 2πRh = 2*22/7 *10* 70
= 4400 cm^2
cost of painting 1cm^2 area = Rs 4
cos of painting its CSA
= 4400 × 4 = Rs17600
Answered by
4
Step-by-step explanation:
The answer is rupees 17600.
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