Maths · Co-ordinate of the centroid, orthocentre and circumcentre of a triangle
An obtuse triangle will have one and only one angle.
An obtuse triangle will have one and only one angle.
- A. acute
- B. obtuse
- C. scalene
- D. right angled
Step-by-step solution
An obtuse triangle is defined as a triangle with one obtuse angle (greater than 90°). Since the sum of angles in a triangle is 180°, there can be only one obtuse angle; if there were two, the sum would exceed 180°. Therefore, it has exactly one obtuse angle.
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