Question
The cost of painting the curved surface area of a cylindrical pillar of height 10 m and radius 3.5 m at ₹ 10/- per sq. meter is ₹ 2200/-.
(use π=227)
Answer: Option A
:
A
Curved surface area of the cylindrical pillar
=2πrh
=2×227×3.5×10
=220 m2
So,
total cost of painting
=Curved Surface Area of pillar×Cost per m2
=220×10
= ₹ 2200/-
Hence, the given statement is true.
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:
A
Curved surface area of the cylindrical pillar
=2πrh
=2×227×3.5×10
=220 m2
So,
total cost of painting
=Curved Surface Area of pillar×Cost per m2
=220×10
= ₹ 2200/-
Hence, the given statement is true.
Was this answer helpful ?
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