Question:
Which angle represents a straight angle in the following?
Which angle represents a straight angle in the following?
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A straight angle is always 180°, formed by two rays pointing in exactly opposite directions.
Updated On: Oct 10, 2025
- 225°
- 180°
- 160°
- 360°
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The Correct Option is B
Solution and Explanation
Step 1: Understanding Straight Angle.
A straight angle is an angle formed when two rays point in exactly opposite directions, which is equal to 180°. This represents a straight line.
Step 2: Verifying the Options.
- Option (1): 225° is an obtuse angle, not a straight angle.
- Option (2): 180° is a straight angle, making this the correct answer.
- Option (3): 160° is an acute angle, not a straight angle.
- Option (4): 360° represents a full rotation, not a straight angle. Conclusion:
Therefore, the correct answer is (2) 180°.
A straight angle is an angle formed when two rays point in exactly opposite directions, which is equal to 180°. This represents a straight line.
Step 2: Verifying the Options.
- Option (1): 225° is an obtuse angle, not a straight angle.
- Option (2): 180° is a straight angle, making this the correct answer.
- Option (3): 160° is an acute angle, not a straight angle.
- Option (4): 360° represents a full rotation, not a straight angle. Conclusion:
Therefore, the correct answer is (2) 180°.
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