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Class 9 Maths Practice Test: Circles - Equal Chords & Their Distances From The Centre
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Avg score: 67% Most missed: “What is the length of AB if CD = 8cm?”

Theorem: Equal chords of a circle (or of congruent circles) are equidistant from the centre (or centres).

Class 9 Maths Practice Test: Circles - Equal Chords & Their Distances From The Centre
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12 Questions

1. Find the value of ∠ABC if O is the centre of circle.
2. Find the value of ∠PRQ from the given figure.
3. Find the value of ∠QOR if O is the centre of circle.
4. If RS is equal to the radius of circle, find the value of ∠PTQ.
5. Find the value of x if O is the centre of circle?
6. What is the value of ∠BDC if ∠BAC: ∠ABC = 4 : 5 and O is the centre of circle?
7. What is the value of ∠PRQ if angle POQ and reflex angle POQ are in the ratio 1 : 3?
8. Find the value of ∠QRS if RS || diameter PQ.
9. Find the measure of arc PAQ.
10. What is the length of AB if CD = 8cm?
11. What is the value of x if O is the centre of circle?
12. What is the value of ∠PRQ if ∠PTS : ∠TPS = 5 : 3?