Unit 25 · Chords of a Circle
15 randomly selected questions from a bank of 60 · one attempt · 15 minutes on the clock.
Topics covered
- Circle terminology — chord, diameter, radius, arc, sector, segment, central angle, concentric/congruent circles, and cyclic quadrilaterals
- Theorem 25.1 — one and only one circle can pass through three non-collinear points, with the circumcentre and real-life applications
- Theorem 25.2 — a line from the centre bisecting a chord (not a diameter) is perpendicular to it
- Theorem 25.3 — the perpendicular from the centre of a circle to a chord bisects it, with its corollaries
- Theorem 25.4 — congruent chords of a circle are equidistant from the centre
- Theorem 25.5 — chords equidistant from the centre are congruent (the converse of Theorem 25.4)
- Applying Pythagoras' theorem to find chord lengths, radii, and distances between chords
Please fill in your name, class and roll/GR# to start the quiz.
Question 1 of 15
⏱ 15:00
Question Palette
Not answered
Answered
Current
Reference
Quiz Result
0
Total Qs
0
Correct
0
Wrong
0%
Percentage
0:00
Time Taken
Answer Review — Step by Step Solutions
Leaderboard
All attempts on this device, stored locally with a unique session ID.
| # | Name | Class | Roll/GR# | Correct | % | Status | Date |
|---|