ECZ 2024 · GCE Paper 1 — Circle Theorems

In the diagram, P, Q, R, S are points on the circle with centre O and angle PQR = 68°. TRU is a tangent at R. Find angle PSR.

Verified working — step 1

P, Q, R and S all lie on the circle, so PQRS is a cyclic quadrilateral - and angle PSR sits opposite angle PQR in it.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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