Question

Which angle is called an obtuse angle in the following?

• A. Angle greater than 90° but less than 180°
• B. Angle greater than 60° but less than 180°
• C. Angle greater than 180° but less than 360°
• D. None of these

Hint:

An obtuse angle is always greater than 90° but less than 180°.

Answer 1

The Correct Option is A

Step 1: Understanding Obtuse Angles.
An obtuse angle is an angle that is greater than 90° but less than 180°. This type of angle is wider than a right angle but smaller than a straight angle.
Step 2: Verifying the Options.

- Option (1): An obtuse angle is defined as an angle greater than 90° but less than 180°, making this the correct answer.
- Option (2): This describes an angle greater than 60°, but not necessarily obtuse.
- Option (3): An angle greater than 180° but less than 360° is a reflex angle, not obtuse.
- Option (4): This is incorrect as option (1) is correct. Conclusion:
Therefore, the correct answer is (1) Angle greater than 90° but less than 180°.