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Fundamentals of Geometry for Secondary or High School [P2]
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Fundamentals of Geometry for Secondary or High School [P2]

Part 2: Right Angles and Angles of a Triangle
Last updated 11/2025
English

What you'll learn

  • Understand geometry thoroughly thru illustrated solved problems.
  • Understand the concepts and postulates of a right triangle.
  • Illustrate the concepts and postulates of angles in a triangle.
  • Analyze and solve examination-like problems.
  • Illustrate and apply the underlying concepts and laws of geometry.

Course content

4 sections25 lectures1h 18m total length
  • See the Part 1 of this course in the link (Resources)0:18

    Hello Everyone!

    Welcome to the course Geometry for Secondary or High School. In this course you will learn each topic through solved examples or exercises.

    On the other hand, the free courses have a limited number of videos that can be uploaded so you will be directed to YouTube.

    Nonetheless, the learning and fun will continue.

    Lastly, messages and questions are welcome.

    Cheers!!

Requirements

  • Elementary or basic algebra.
  • Nonetheless, you will learn everything you need to know through solved exercises.

Description

Imagine reading an entire geometry textbook for secondary or high school and solving most of the exercises. Wow, that’s amazing! Well, that’s exactly what you’ll achieve if you enroll in this course. It is based on a comprehensive collection of geometry books. Every topic from these books has been carefully compared, compiled, and discussed, with most of the challenging and essential exercises solved for you.

If you’ve ever wished for more solved examples, then this course is perfect for you! While many other courses offer lectures, very few provide an abundance of solved exercises or examples. This course can serve as a supplementary resource or even as a primary reference to help you understand geometry for secondary or high school. It includes concept overviews and, most importantly, plenty of solved exercises. These exercises are designed to enhance your understanding of concepts, postulates, and axioms in a clear and practical way.

This is the second part (Part 2: Right Angles and Angles of a Triangle) for the subject Geometry in high school or secondary. Enrol and follow the author for more future contents.


The author’s aim is simple, that is to teach mathematics by comprehension. As the world and generation changed, the teaching style must follow. This is what we call the innovation in teaching. To do that, a simple brief lecture must be followed by lots and lots of examples applying the mathematics topic that have been discussed. In that manner, the knowledge is transferred by showing them how the theorem and axioms work.

The author deeply believes that mathematics is a great tool for advancement and discovering things. Through this innovation of teaching, the tools have been presented and it’s up to the future generation on how they are going to use these tools in order to improve life, hopefully.

Thank you very much and have fun!..


Note: If you are under 18 years old, please seek advice and guidance from your parents or guardian in enrolling in the course.  Thank you. Share this course to your friends, relatives and families. Sharing is caring.

Note: Please. Please. Please, no reproduction of this work. This can be used in classroom lectures but please no reproduction. Please. You can also use the videos in the YouTube channel but please no reproduction. Thank you very much for your understanding.

Who this course is for:

  • Students who want more and more examples or solved exercises to learn thoroughly the topics in geometry.
  • Students who want to ace or just pass the examinations.
  • Supplementary to teachers and lecturers subject materials.
  • Homeschool or home education.