CAT 2020 Slot 2 QA Q21 Geometry

Question 21 of the Quantitative Ability (QA) section, CAT 2020 Slot 2, with CAT's official answer.

Let C1 and C2 be concentric circles such that the diameter of C1 is 2cm longer than that of C2. If a chord of C1 has length 6 cm and is a tangent to C2, then the diameter, in cm of C1 is

TITA: type in the answer. There are no options and no negative marking.

Answer: 10 Geometry TITA

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Same concept in other years

See every question on Chord and centre: r^2 = d^2 + (half chord)^2.

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