Mathematics
Grade9
Easy
Question
Classify the triangle by its sides and angles
- Isosceles & acute
- Isosceles & obtuse
- Scalene & acute
- Scalene & obtuse
Hint:
By observing side all three side are different, and by observing angle there is one obtuse angle
115°(> 90°).So, classify the triangle with three side lengths are different and triangle with on obtuse angle.
The correct answer is: Scalene & obtuse
By observing side all three side are different.
Scalene Triangle is a triangle that has all its sides of different lengths.
By observing angle there is one obtuse angle 115°(> 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, the given triangle is Scalene & obtuse.
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