please answer this question
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12cm
Step-by-step explanation:
In ∆ ABC & ∆ ACD
<A = <A ; <C = <D....hence ..
∆ ABC ~ ∆ ACD ( AA similarity...)
therefore...
AB/AC = AC/AD
AB = AC × AC/AD
AB = 6 × 6 / 3 = 12
AB = 12cm
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