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The altitude AD of in ΔABC is 10 cm. The ∠A is an obtuse angle and BD = 10 cm, CD = 10√3 cm. Find ∠A. |
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Answer» The altitude AD of in ΔABC is 10 cm. The ∠A is an obtuse angle and BD = 10 cm, CD = 10√3 cm. Find ∠A. |
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