alleryA tangent PT is drawn from a point P to a circle with centre O. The triangle OPT formed by joining OT is
ARight-angled at T
BEquilateral
CAcute-angled at T
DRight-angled at P
Answer & Solution
Correct answer: A. Right-angled at T
1. T is the point of contact; OT is the radius.
2. Tangent PT is perpendicular to OT at T.
3. Hence triangle OPT is right-angled at T.
_Source: syllabus Mathematics, Ch 10 "Circles", §10.2_
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