Circles > Question
Assertion-Reason1 markYear: 2023MediumCBSE Class 10
circlestangentassertion-reason

Question

Assertion (A): A tangent to a circle is perpendicular to the radius through the point of contact.
Reason (R): The lengths of tangents drawn from an external point to a circle are equal.
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
(c) Assertion (A) is true, but Reason (R) is false.
(d) Assertion (A) is false, but Reason (R) is true.

Solution

1
Both A and R are true. R (tangent lengths equal) is not the explanation for A (tangent perpendicular to radius). These are independent properties.
+1 mark

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