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This is a geometry problem plz help
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do u know that u're at the wrong place...@,@ btw, the answer is 7
)) 2 *AB=6 DF=(EF-AB)/2 = 7!
DF = AF-AD = AF-AB = (1/2)EF-AB = 10-3 = 7
its a finance section u sud ask ur doubt in Maths..btw the ans is 7.
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EF is diameter of bigger circle and AB is radius of small circle. AF is radius of large circle which is EF/2, hence 10. So DF = AF-AD (AD= AB). DF = 10 - 3 = 7. But i also agree that this is not the best section for the problem :)
but typically, people who are good in finance should be good in maths as well...
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