Chapter 5
I’m Up and Down, and Round and Round
CBSE Class 9
Mathematics Solutions
Educart Mathematics class Class 9 NCERT Exemplar cover
Question:

What is the least possible radius of a circle through two points A and B?                                [Page No. 98]

Answer: Verified

The smallest circle passing through A and B is the one having AB as its diameter. In this case the centre is the midpoint of AB and the radius equals half the length of AB.

Therefore, the least possible radius = AB2\frac{AB}{2}.

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More NCERT Questions
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