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Circles

Circles

MODULES

Terminologies
Circumference & Area
Chord Properties
Angle Properties
Quadrilaterals in Circles
Tangents
Common Tangents
Past Questions

CONCEPTS & CHEATSHEET

Concept Revision Video

PRACTICE

Circles : Level 1
Circles : Level 2
Circles : Level 3
ALL MODULES

CAT 2025 Lesson : Circles - Past Questions

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11. Past Questions

Question 1

In a triangle ABC, AB = 6, BC = 8 and AC = 10. A perpendicular dropped from B, meets the side AC at D. A circle of radius BD (with centre B) is drawn. If the circle cuts AB and BC at P and Q respectively, then AP : QC is equal to
[CAT 2003L]

1 : 1
3 : 2
4 : 1
3 : 8

Answer: (4) 3 : 8

Question 2

Two identical circles intersect so that their centres, and the points at which they intersect, form a square of side 1 cm. The area in sq. cm of the portion that is common to the two circles is
[CAT 2005]

π4\dfrac{\pi}{4}4π​
π2−1\dfrac{\pi}{2} - 12π​−1
π5\dfrac{\pi}{5}5π​
2−1\sqrt{2} - 12​−1

Answer: (2) π2−1\dfrac{\pi}{2} - 12π​−1

Question 3

ABCD is a quadrilateral inscribed in a circle with centre O. If ∠COD = 120 degrees and ∠BAC = 30 degrees, then the value of ∠BCD (in degrees) is
[CAT 2017 S2]

Answer: 90

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