Now, in ∆ABC,
there can be 3 cases
All angles are acute
One angle is right angle (90°)
One angle is greater than 90° (i.e one angle is obtuse)
If all angles are acute, it is an acute angled triangle.
If one angle is right angle, it is a right angled triangle.
If one angle is greater than 90°, it is an obtuse angled triangle.
(a) is an acute-angled triangle
(b) is a right-angled triangle
(c) is an obtuse angled triangle
(d) is a right angled triangle
(e) is an obtuse angled triangle
(f) is an acute angled triangle
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
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