# Grade 9 Mathematics Module: Conditions for Proving Triangles Similar

This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.

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Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacherâ€™s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these.

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This module was designed and written with you in mind. It is here to help you master Describing a Proportion. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. The lessons are arranged to follow the standard sequence of the course. But the order in which you read them can be changed to correspond with the textbook you are now using.

• Prove the conditions for similarity of triangles.
• Solve problems and prove statements by means of the AA Similarity Postulate, SAS Similarity Theorem and SSS Similarity Theorem.

## Grade 9 Mathematics Quarter 3 Self-Learning Module: Conditions for Proving Triangles Similar

MATH9-Q3-MODULE11

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1. I want to know more about proving similar triangles