Question:
What is the sum of internal angles of a triangle?
What is the sum of internal angles of a triangle?
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The sum of the internal angles of a triangle is always 180°.
Updated On: Oct 10, 2025
- One right angle
- Two right angles
- Three right angles
- None of these
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The Correct Option is D
Solution and Explanation
Step 1: Understanding Triangle Angle Sum.
The sum of the internal angles of any triangle is always 180°. This is a fundamental property of triangles.
Step 2: Verifying the Options.
- Option (1): One right angle equals 90°, which is incorrect.
- Option (2): Two right angles equals 180°, which is incorrect because the total sum for a triangle is 180°, not the sum of right angles.
- Option (3): Three right angles would be 270°, which is incorrect.
- Option (4): "None of these" is the correct answer because the sum of the angles of a triangle is 180°, which is not listed in the options. Conclusion:
Therefore, the correct answer is (4) None of these.
The sum of the internal angles of any triangle is always 180°. This is a fundamental property of triangles.
Step 2: Verifying the Options.
- Option (1): One right angle equals 90°, which is incorrect.
- Option (2): Two right angles equals 180°, which is incorrect because the total sum for a triangle is 180°, not the sum of right angles.
- Option (3): Three right angles would be 270°, which is incorrect.
- Option (4): "None of these" is the correct answer because the sum of the angles of a triangle is 180°, which is not listed in the options. Conclusion:
Therefore, the correct answer is (4) None of these.
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