🎯 Knowledge Check
Maths — CIRCLES
📚
ACADEMIA AETERNUM
तमसो मा ज्योतिर्गमय · Est. 2025
Sharing this chapter
Free NCERT Solutions, Notes & MCQs for Class 9–12 | Academia Aeternum
Free NCERT Solutions, Notes & MCQs for Class 9–12 | Academia Aeternum — Complete Notes & Solutions · academia-aeternum.com
🎓 Class 0
📐
📖 NCERT
✅ Free Access
🏆 CBSE · JEE
Share on
WhatsApp
Telegram
X / Twitter
Facebook
Instagram
Threads
Pinterest
LinkedIn
Quora
Discord
Reddit
Email
academia-aeternum.com/blogs/MCQs/mathematics/IX-Class/circles-ix-mcqs/
Copy link
💡
Exam tip: Sharing chapter notes with your study group creates a
reinforcement loop. Teaching a concept is the fastest path to mastering it.
Frequently Asked Questions
A circle is a set of all points in a plane that are at a fixed distance (radius) from a fixed point called the centre.
The distance from the centre to any point on the circle. All radii of a circle are equal.
A line segment passing through the centre and touching both ends of the circle. It is twice the radius.
\( \text{Diameter} = 2 \times \text{Radius} \).
A chord is any line segment joining two points on a circle.
The diameter is the longest chord.
A part of the circumference between two points is called an arc.
The smaller arc between two points on a circle.
The larger arc between the same two points on a circle.
A \(180^\circ\) arc formed by endpoints of the diameter.
A region bounded by a chord and its corresponding arc.
Minor segment and major segment.
A region enclosed by two radii and the connecting arc.
The angle subtended at the centre by an arc or chord.
Angle formed at centre by joining centre with chord endpoints.