Exemplar - Circles and tangents — task. Maths CBSE Live product, Class 10.

1. If radii of two concentric circles are \(4 \ cm\) and \(5 \ cm\), then the length of each chord of one circle which is tangent to the other circle is:

\(6 \ cm\)
\(3 \ cm\)
\(1 \ cm\)
\(9 \ cm\)

2. In figure, if \(\angle AOB = 125^\circ\), then \(\angle COD\) is equal to

\(45^\circ\)
\(35^\circ\)
\(55^\circ\)
\(62.5^\circ\)

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4. Exemplar - Circles and tangents

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