Math, asked by fj8106370, 7 hours ago

If the Arc of the same length in two circles subtand angles 65°and 110° at the centre.Find the ratio of the radii​

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Answered by sayyedaleemuddin7890
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In an experiment, 3.672 g of copper oxide gave, on reduction, 2.938 g of copper. What is mass of oxygen formed? What is the ratio of masses of copper and oxygen? (A) 0.634 g. 4:1 (B) 0.534 g 1:4 (C) 0.734 g 4:1 (D) 0.934 g 1:4

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