Classify the following triangles as acute-angled, right angled or obtuse-angled according to the magnitude of their angles.
10°,20°,150°
As one of the angles of the triangle is greater than 90° and less than 180° so it is an Obtuse- angled triangle.
Classify the following as acute-angled, right-angled or obtuse-angled triangles according to the measures of their angles.
20°,40°and120°
Classify the following into acute angle, obtuse angle, reflex angle, and right angle:
60°,120°,270°,210°,30,45°,150°,235°
Classify the angle as acute, obtuse, right, straight, reflex or zero angle.
67.5°.
Classify the following triangles as acute, right or obtuse-angled triangles according to the magnitude of their angles.
48°,48°,84°
Classify the triangle as acute-angled, right-angled and obtuse-angled triangles on the basis of their angles which have been given below-:
75°,20°,85°