In Fig. 6.59

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In Fig. 6.59, ABC is a triangle in which ∠ ABC < 90° and AD ⊥ BC. Prove that AC^2 = AB^2 + BC^2 – 2 BC . BD.
05
Oct
In Fig. 6.59, ABC is a triangle in which ∠ ABC < 90° and AD ⊥ BC. Prove that AC^2 = AB^2 + BC^2 – 2 BC . BD. ABC is a triangle in which ∠ ABC < 90° and AD ⊥ BC. Prove that AC^2 = AB^2 + BC^2 – 2 BC . BD. [...]
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