Math, asked by angitkumarpachhola14, 6 hours ago

एक तार को 28 सेमी की त्रिज्या के वृत्त के आकार में मोड़ आ गया है यदि इस वर्ग के आकार में मोड़ा जाता है तो इस वर्ग का क्षेत्रफल कितना होगा​

Answers

Answered by nandni788
1

Answer:

616 cm

Since area of square is A = a²

484 = a²

a = \sqrt{484}

484

a = 22 cm

Perimeter of the square = 4a

= 4 x 22 = 88 cm.

Perimeter of said circle would be P = 2πr

2πr = 88

πr = 88 / 2

(22/7)r = 44

r = (44 x 7) / 22

r = 2 x 7 = 14 cm

Area of circle = πr²

= (22/7) x 14 x 14

= 44 x 14

= 616 cm²

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