a cylindrical pillar is 1 m in diameter and 4.2 in height.find the cost of white washing tge curved surface of pillar at the rate ₹15per msquare
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Answered by
1
Answer:
Dimensions of the cylinder Piller are:
Diameter = d = 1 m
Radius ( r )= d / 2 = 1 / 2 m
Height = h = 4.2 m
Curved surface area of the cylinder
= C.S.A = 2πrh
= 2 × 22 / 7 × 1 / 2 × 4.2
= 13.2 square meters
Cost of white washing the CSA of
Piller per square meter = Rs 15
Cost of white washing the 13.2m Piller
= 13.2 × 15
= Rs 198
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Answered by
0
Answer:
r=0.5
h=4.2
csa=2×22/7×r×h
=2×22/7×0.5×4.2
=13.2
total cost=15× csa
=198
Step-by-step explanation:
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