Question
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Solution
∠ DEC = 1800 – 1280 = 5200 ∠ EDC = 1800 – (520 + 250) ∠ EDC = 1800 – 770 ∠ EDC = 1030 Chord BC makes 1030 at D by same are make it 1030 at ∆ ∠ BAC = 1030
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