Question

If the angles of a triangle abc are in the ratio of 3 : 5 : 7, then the triangle is

Answer 1

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Answer 2

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$Heya \\</p><p>The \: sum \: of \: all \: angles \: of \: a \: triangle \: is \: 180° \\ </p><p>According \: to \: the \: question \\ </p><p>Let \: the \: angles \: be \: 5x, 3x \: and \: 7x \\ </p><p>=> 5x + 3x + 7x = 180° \\ </p><p>=> 15x = 180° \\ </p><p>=> x = 12° \\ </p><p>5x = 5×12 = 60° \\ </p><p>3x = 3×12 = 36° \\ </p><p>7x = 7×12 = 84°$

All angles are less than 90° So it is a acute-angled & scalene traingle...

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