Mathematics
Grade9
Easy
Question
Classify the triangle by its sides
- Acute
- Right
- Obtuse
- Equiangular
Hint:
Observe the angles of the given triangle .Here one angle 125° (> 90°) is Obtuse angle.
The correct answer is: Obtuse
The angles of the triangles are 20° ,35° and 125°.
Here , 125° > 90° .
A triangle whose any one of the angles is an obtuse angle or more than 90°, then it is called an obtuse-angled triangle or obtuse triangle.
Therefore, given triangle is called obtuse angled triangle.
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