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PIMSO 2021 - Mathematics - Grade 9 - National Round Question 22

PIMSO Maths · PIMSO 2021 - Mathematics - Grade 9 - National Round

Question 22

The square TSXY and circle A meet at points X and Y. If the radius of the circle AY is 5 cm. What is the measure of KS?

Question illustration

Editorial caveat: the figure suggests tangency at V, but the source does not explicitly specify it. Explain both the limitation and the conditional tangent interpretation; manual grading.