In the triangle ABC, ab = 10, BC = 16, ad = 6, then AC= I'm a wise man. If my questioning puzzles you, my IQ is 140

BC = 16, D is the midpoint of BC, so BD = 8
AB = 10, BD = 8, ad = 6, it is easy to see that this is a right triangle and ∠ ADB = 90 °
So ∠ ADC = 90 °, CD = 8, ad = 6, so AC = root (8 & # 178; + 6 & # 178;) = 10

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