CBSE 2025 · Region 4 · Set 2 · Q19 · 1 mark
Assertion (A) : A line drawn perpendicular to the tangent at point of contact passes through the centre of the circle.
Reason (R) : Lengths of tangents drawn from external point to a circle are equal.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both, Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
CirclesTangent Properties and ProofsAnalyseassertion_reasonmedium
More from Circles
- Which of the following statements is false?2025 · asked 3×
- At point A on the diameter AB of a circle of radius 10 cm, tangent XAY is drawn to the circle. Find the…2025 · asked 3×
- A person is standing at P outside a circular ground at a distance of 26 m from the centre of the ground. He…2025 · asked 3×
- In the adjoining figure, XY and X'Y' are parallel tangents to a circle with centre O. Another tangent AB…2025 · asked 3×
- In the adjoining figure, PA and PB are tangents to a circle with centre O. The measure of angle APB is2025 · asked 3×
- In the given figure, RS is the tangent to the circle at the point L and MN is the diameter. If ∠ NML=30^°,…2025 · asked 3×
- Rectangle ABCD circumscribes the circle of radius 10 cm. Prove that ABCD is a square. Hence, find the…2025 · asked 3×
- In the given figure, PA is a tangent from an external point P to a circle with centre O. If ∠ POB=115^°, then…2025 · asked 3×
CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.