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(see Fig. 7.23 ). Show that (i) \( \Delta \mathrm { AMC } \cong \Delta \mathrm { BMD } \) (ii) \( \angle D B C \) is a right angle. (iui) \( \Delta \mathrm { DBC } \equiv \Delta \mathrm { ACB } \) (iv) \( C M = \frac { 1 } { 2 } A B \) Fig. 7.22 Fig. 7.23 2

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[4 marks]
[NCERT]
[SAS congruence rule]
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