A dome of a building is in the form of a hemisphere. From inside, it was whitewashed at the cost of Rs 498.96. if the cost of whitewashing is Rs 2.00 per square meter, find the inside surface area of the dome

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Solution

Surface Area $= \frac{C o s t}{R a t e} = \frac{498.96}{2} = 249.48 m^{2}$

Surface Area of dome $\Rightarrow 2 π r^{2} = 249.48 m^{2}$

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Q. Question 8 (i)
A dome of a building is in the form of a hemisphere. From inside, it was whitewashed at the cost of ₹ 498.96. If the cost of whitewashing is ₹ 2 per square meter, find:
(i) the inside surface area of the dome,

[A s s u m e π = \frac{22}{7}]

A dome of a building is in the form of a hemisphere. From inside, it was whitewashed at the cost of Rs. 498.96. If the cost of whitewashing is Rs. 2 per square meter, find the volume of the air inside the dome.
$[A s s u m e π = \frac{22}{7}]$

Q. Question 8 (ii)
A dome of a building is in the form of a hemisphere. From inside, it was whitewashed at the cost of ₹ 498.96. If the cost of whitewashing is ₹ 2 per square meter, find the:
volume of the air inside the dome

[A s s u m e π = \frac{22}{7}]

A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost of Rs 498.96. If the cost of white-washing is Rs 2.00 per square meter, find the

(i) inside surface area of the dome,

(ii) volume of the air inside the dome.

Q. A dome of a building is in the form of a hemisphere. From inside, it was white-washed, at the cost of Rs.

498.96

. If the cost of white-washing is

R s . 2.00

per square metre, find the
(i) inside surface area of the dome
(ii) volume of the air inside the dome.

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A dome of a building is in the form of a hemisphere. From inside, it was whitewashed at the cost of Rs 498.96. if the cost of whitewashing is Rs 2.00 per square meter, find the inside surface area of the dome

Surface Area =CostRate=498.962=249.48m2Surface Area of dome ⇒2πr2=249.48m2

Surface Area $= \frac{C o s t}{R a t e} = \frac{498.96}{2} = 249.48 m^{2}$

Surface Area of dome $\Rightarrow 2 π r^{2} = 249.48 m^{2}$