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Question
Find the volume of a cylinder whose radius is 7 cm and height is 10 cm.
एक बेलन का आयतन ज्ञात कीजिए जिसकी त्रिज्या 7 सेमी और ऊंचाई 10 सेमी है।
A.
1540 cubic cm

1540 घन सेमी

B.
770 cubic cm

770 घन सेमी

C.
140 cubic cm

140 घन सेमी

D.
154 cubic cm

154 घन सेमी

Answer ( Option A)

1540 cubic cm

1540 घन सेमी

Solution

 Key Points :-
The volume of a cylinder is given by πr²h, where r is the radius and h is the height.
 Here, r = 7 cm and h = 10 cm. 
Therefore, the volume is π * (7 cm)² * (10 cm) = 490π cubic cm. 

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