Classify the $△ MNO$ with $m ∠ M = 130 °, m ∠ N = 30 ° & m ∠ O = 20 ° .$

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Solution

In the given $△ MNO$ , one angle is an obtuse angle(more than $90 °$ ) and others are acute angles(less than $90 °)$ .
And we know we call such type of triangles as an Obtuse angle triangle.
Therefore the given triangle is an Obtuse angle triangle.

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Classify the following triangles.

$∆ M N O$ with $m ∠ M = 130 °, m ∠ S = 30 °, a n d m ∠ O = 20 °$ .

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