<p>Triangles \(ACB\) and \(DEB\) are right-angled triangles.</p>
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<p>\(AD = 9\) cm, \(DE = 2\) cm and \(DB = 6\) cm.</p>
<p>Calculate the length of \(CB\).<span class="inline-marks">[4]</span></p>

Triangles \(ACB\) and \(DEB\) are right-angled triangles.

\(AD = 9\) cm, \(DE = 2\) cm and \(DB = 6\) cm.

Matrices

Matrices