Similarity and Trigonometry Basics - Proof-based Questions - Problem Set

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Q. In circle O, if the radius is 5 cm, what is the circumference?
  • A. 10π cm
  • B. 15π cm
  • C. 20π cm
  • D. 25π cm
Q. In triangle JKL, if JK = 6 cm, KL = 8 cm, and JL = 10 cm, is triangle JKL a right triangle?
  • A. Yes
  • B. No
  • C. Cannot be determined
  • D. Only if angle K is 90 degrees
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