ProofModerate1 mark
10(ii)
In the given diagram O is the centre of the circle. Chord SR produced meets the tangent XTP at P.
Prove that ΔPTR ~ ΔPST
Topic: Similarity / scale factor
Previous-year question practice database
Answer
Exam answer
ΔPTR ∼ ΔPST
Explanation
Use tangent–chord theorem and the common angle at P to establish AA similarity.
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