NCERT · Class 9 · Mathematics · CirclesA circle is the collection of all points in a plane which are at a constant distance from a fixed point. What is the fixed point called?
Step-by-Step Solution
The fixed point is called the center of the circle. By definition, a circle is the locus of a point moving in a plane such that its distance from a fixed point (center) is always constant (radius).
Detailed Options Breakdown
Option : Radius
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Circles.
Option 1: Center (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Diameter
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Circles.
Option 3: Chord
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Circles.
💡 Study Guide: This question tests core syllabus concepts from Circles. For formulas, key summaries, and mock exam reference guides, read the full Circles Revision Notes.