Which of the following angles are obtuse?
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Which of the following angles are obtuse?
By definition, an obtuse angle is an angle that is greater than 90 degrees. We can observe that in one drawing there is an angle of 90 degrees and therefore it is not an obtuse angle, the other two angles are less than 90 degrees meaning they are also not obtuse, they are acute angles.
Therefore, none of the answers is correct.
None of the options
Which of the following angles is a plane angle?
Look for an angle that opens wider than a right angle (like the corner of a square). If the angle looks like it could fit a right angle inside it with room left over, it's obtuse!
Acute angles are less than 90° (sharp and narrow), while obtuse angles are greater than 90° (wide and blunt). Think: acute = cute and small, obtuse = big and wide.
No! A straight line measures exactly , which makes it a straight angle, not obtuse. Obtuse angles are between 90° and 180°.
The first angle is exactly 90° (right angle), and the second appears to be acute (less than 90°). Since no angle exceeds 90°, none qualify as obtuse.
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