MP Board · Class 9 · Mathematics · Lines and AnglesAn angle is 20° more than its complement. The measure of the angle is:
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Step-by-Step Solution
Let the angle be x. Its complement is (90 - x). According to question, x = (90 - x) + 20 => 2x = 110 => x = 55°.
Detailed Options Breakdown
Option : 55° (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: 35°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Lines and Angles.
Option 2: 70°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Lines and Angles.
Option 3: 60°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Lines and Angles.
💡 Study Guide: This question tests core syllabus concepts from Lines and Angles. For formulas, key summaries, and mock exam reference guides, read the full Lines and Angles Revision Notes.