NCERT · Class 8 · Mathematics · Understanding QuadrilateralsThe sum of the interior angles of a polygon with $n$ sides is given by which formula?
Step-by-Step Solution
The formula to find the sum of interior angles of an $n$-sided polygon is $(n - 2) \times 180^\circ$.
Detailed Options Breakdown
Option : $(n - 1) \times 180^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Understanding Quadrilaterals.
Option 1: $(n - 2) \times 180^\circ$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $(n + 2) \times 180^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Understanding Quadrilaterals.
Option 3: $n \times 180^\circ$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Understanding Quadrilaterals.
💡 Study Guide: This question tests core syllabus concepts from Understanding Quadrilaterals. For formulas, key summaries, and mock exam reference guides, read the full Understanding Quadrilaterals Revision Notes.