Multiple choice

One chord of a circle is known to be 10.1 cm. The radius of this circle must be. एक वृत्त की एक जीवा 10.1 सेमी. है। इस वृत्त की त्रिज्या होनी चाहिए।

  1. 5 cm/सेमी.

  2. greater than 5 cm/5 सेमी. से बड़ी

  3. greater than or equal to 5 cm/5सेमी. के बराबर या इससे बड़ी

  4. less than 5 सेमी. से छोटी
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B Correct answer
Explanation

The diameter is the longest chord of a circle, so any chord must be less than or equal to the diameter (2 × radius). If chord = 10.1 cm, then 2r ≥ 10.1, meaning r ≥ 5.05 cm. Thus, the radius must be strictly greater than 5 cm (not equal to 5).

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