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[" 10.If in a triangle "ABC," if "(1-(r(...

[" 10.If in a triangle "ABC," if "(1-(r_(1))/(r_(2)))(1-(r_(1))/(r_(3)))=2" then the triangle is "],[[" 1) isosceles "," 2) equilateral "," 3) right angled "," 4) none "]]

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