alleryThe lengths of two tangents drawn from an external point to a circle are
AHalf the radius
BAlways unequal
CEqual only for chords
DEqual
Answer & Solution
Correct answer: D. Equal
1. The two tangents from an external point are equal in length.
2. Proof uses RHS congruence of two right triangles formed by tangents and radii.
3. Hence equal.
_Source: syllabus Mathematics, Ch 10 "Circles", §10.3_
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