The angle of a triangle are in the ratio $1 : 3 : 5$ . Find the measured of each of the angle .

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Solution

$\begin{matrix} L e t a n g l e s o f t r i a n g l e b e x, 3 x a n d 5 x A s w e k n o w t h a t \Rightarrow S u m o f a l l a n g l e s o f t r i a n g l e = 180^{\circ} \Rightarrow∴ x + 3 x + 5 x = 180^{\circ} \Rightarrow 9 x = 180^{\circ} x = 20^{\circ}, 3 x = 60^{\circ} a n d 5 x = 100^{\circ} A n s . \end{matrix}$

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The three angles are in ratio $2 : 3 : 5$ . find the measure of each angle. classify the triangle

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