The angles of triangle are in ratio $1 : 3 : 5$ find the angles

20, 60, 100

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30, 60, 90

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45, 60, 75

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50, 60, 70

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Solution

The correct option is A $20, 60, 100$
Le the common factor be $x$
so the angles are $x, 3 x, 5 x$
BY angle sum property
$x + 3 x + 5 x = 180 10 x = 180 x = 20$
So the angles are
$x = 20 3 x = 60 5 x = 100$

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The angles of a triangle are in the ratio 2 : 3 : 5. Find the angles.

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