Verified by Ajay Kumar
If a circular wire is bent to form a square, and the radius of the circle is 14 cm, what is the side of the square?
14
22
44
28
Answer: B
Solution: The wire length equals the circle's circumference, \(2\pi r=2\times\frac{22}{7}\times14=88\) cm. This becomes the square's perimeter. Therefore, side \(=88\div4=22\) cm. Trick: Equate the circle's circumference to the square's perimeter.
यदि एक वृत्ताकार तार को मोड़कर वर्ग बनाया जाता है और वृत्त की त्रिज्या 14 सेमी है, तो वर्ग की भुजा कितनी होगी?
14
22
44
28
उत्तर: B
हल: तार की लंबाई वृत्त की परिधि के बराबर है, \(2\pi r=2\times\frac{22}{7}\times14=88\) सेमी। यही वर्ग का परिमाप होगा। इसलिए भुजा \(=88\div4=22\) सेमी। ट्रिक: वृत्त की परिधि को वर्ग के परिमाप के बराबर रखें।
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