Introduction
Hey there!
In this section, we will be focusing on the relationship between sides and angles in triangles. This is also known as TRIGONOMETRY.
Trigonometry consists of 3 major sections: Right-Angled Triangles, Non-Right-Angled Triangles and Trigonometric Graphs.
These concepts can be understood and tested abstractly; however you will be able to apply it to 2D real-life scenarios and may be examined accordingly.
There are three sides to consider: HYPOTENUSE, OPPOSITE & ADJACENT sides.
There are 3 main Trigonometric ratios:
Sin(x) = O/H
Cos(x) = A/H
Tan(x) = O/A
Task
The links to the tasks are shared below:
Please complete both of the above exercises. They will test and enhance your application of the basic laws of trigonometry.
Process
Some resources that may be useful:
The following video provides a brief overview of the basic concepts surrounding Trigonometry
The following 2 videos will provide simple examples of applying the laws of Trigonometry, regarding sin, cos and tan
Above is a visual presentation of the sin, cos and tan ratios
Above are examples of the application of the sin, cos and tan laws
Below are links to articles which will supplement your understandings of the basics of Trigonometry:
https://intl.siyavula.com/read/maths/grade-10/functions/06-functions-05
Evaluation
NB: You will be assessed according to the mark allocations in the task per question
Conclusion
This concludes the introduction to Trigonometry, with the primary focus being on Right-Angled Triangles.
This section is crucial, as it builds the foundational understandings of the next concepts that will follow in this topic.
Remember to lookout for the 3 major ratios of Trig: Sin, Cos and Tan and to know their mathematical definitions in context of the mathematical problems!
Good luck!