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/-.
( $u s e π = \frac{22}{7}$ )

True

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False

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Solution

The correct option is A
True

Curved surface area of the cylindrical pillar
$= 2 π r h$
$= 2 \times \frac{22}{7} \times 3.5 \times 10$
$= 220 m^{2}$

So,
$t o t a l c o s t o f p a i n t i n g$
$= C u r v e d S u r f a c e A r e a o f p i l l a r \times C o s t p e r m^{2}$
$= 220 \times 10$
= ₹ 2200/-

Hence, the given statement is true.

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Similar questions

The cost of painting the curved surface area of a cylindrical pillar of height 10 m and radius 3.5 m, at Rs.10 per sq. meter is Rs. 2200.
(Take pi= $\frac{22}{7}$ )

The cost of painting curved surface area of a cylindrical pillar of height 10 m and radius 3.5 m at Rs.10 per sq. meter is Rs.2200.
(Take pi= $\frac{22}{7}$ )

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/-.
( $u s e π = \frac{22}{7}$ )

Q. The cost of painting the curved surface area of a cylindrical pillar of height 10 m and radius 3.5 m at the rate of ₹ 10 per sq. meter is :
(Take pi=

\frac{22}{7}

)

Q. Find the cost of painting curved surface area of a cylindrical pillar of height 10 m and radius 3.5 m at Rs. 10 per sq. meter.

(T a k e π \frac{22}{7})

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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)

The correct option is A True 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.

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/-.
( $u s e π = \frac{22}{7}$ )