CBSE · Class 7 · Mathematics · Lines and AnglesTwo angles whose sum is $90^{\circ}$ are called:
Step-by-Step Solution
When the sum of the measures of two angles is $90^{\circ}$, the angles are called complementary angles.
Detailed Options Breakdown
Option : Supplementary angles
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Lines and Angles.
Option 1: Complementary angles (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Adjacent angles
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Lines and Angles.
Option 3: Vertically opposite angles
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.