NCERT · Class 9 · Mathematics · TrianglesEach angle of an equilateral triangle is:
Step-by-Step Solution
An equilateral triangle has all three sides equal and consequently all three angles equal. Since the sum of angles is $180^\circ$, each angle is $180^\circ / 3 = 60^\circ$.
Detailed Options Breakdown
Option : 30°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
Option 1: 60° (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: 90°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
Option 3: 120°
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
💡 Study Guide: This question tests core syllabus concepts from Triangles. For formulas, key summaries, and mock exam reference guides, read the full Triangles Revision Notes.