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A wire, is in the form of a circle, encl...

A wire, is in the form of a circle, encloses an area `3118.5 cm^2`. It is now bent to form a rectangle whose length and breadth are very nearly in the ratio 7:4. The length of the rectangle, in cm, is:
एक तार, जो वृत्त के रूप में है, 3118.5 वर्ग सेमी क्षेत्र को घेरता है | अब इसे मोड़कर एक आयत बनाया जाता है जिसकी लंबाई और चौड़ाई लगभग 7 : 4 के अनुपात में है | इस आयत की लंबाई ( सेमी में ) है : (Take `pi=22/7`)

A

56

B

49

C

7

D

63

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