Name: \( \qquad \) Agbay, Kris May Gr.\&Sec.: \( \qquad \) Score: \( \qquad \) Date: \( \qquad \) \( 2121 / 25 \) MASTERY TEST 4.1 I. IDENTIFICATION: Read each description carefully and write what/who is being asked. \( \qquad \) 1. He is considered as the father of Trigonometry. \( \qquad \) 2. Give the 2 Greek words where the word Trigonometry came from \( \qquad \) 3. \( \qquad \) 4. He wrote the Almagest. \( \qquad \) 5. He wrote the first textbook to bear the title Trigonometry. \( \qquad \) 6. He discovered sine and cosine. \( \qquad \) 7. He discovered tangent. \( \qquad \) 8. They applied the methods \( \qquad \) 9. of analysis to trigonometry \( \qquad \) 10.

Here are the answers to the identification questions based on the descriptions provided: 1. **He is considered as the father of Trigonometry.** **Answer:** Hipparchus 2. **Give the 2 Greek words where the word Trigonometry came from.** **Answer:** "Trigonon" (triangle) and "metron" (measure) 3. **(This question is missing a description; please provide it for an answer.)** 4. **He wrote the Almagest.** **Answer:** Claudius Ptolemy 5. **He wrote the first textbook to bear the title Trigonometry.** **Answer:** Bartholomaeus Pitiscus 6. **He discovered sine and cosine.** **Answer:** Aryabhata 7. **He discovered tangent.** **Answer:** Nasir al-Din al-Tusi 8. **They applied the methods.** **Answer:** (This question is missing a description; please provide it for an answer.) 9. **of analysis to trigonometry.** **Answer:** (This question is missing a description; please provide it for an answer.) 10. **(This question is missing a description; please provide it for an answer.)** If you have additional descriptions for questions 3, 8, 9, and 10, please provide them for complete answers.