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Before you dive in to learning about the sine and cosine law, do the Quizizz on the right. The Quizizz is meant to review some prerequisite knowledge you will need. This knowledge includes:
The Pythagorean theorem
The primary trigonometric ratios
Angles of depression and elevation
Acute, obtuse, and right triangles
If you feel like you need more practice after completing the Quizizz, click on the review button below to be taken to a page with further resources.
The Primary Trigonometric Reviews:
In Math 10, you used the primary trigonometric ratios to determine side lengths and angle measures in right triangles.
In the figure to the right, the sides are represented by lowercase letters and the angles are represented by uppercase letters.
a) The hypotenuse is on the side across from the right angle in the triangle.
b) Opposite means the side across from the angle we are using.
c) Adjacent means the side next to the angle we are using (but not the hypotenuse).
The acronym SOH CAH TOA is used to remember the primary trigonometric ratios.
If you feel like you need more review on the primary trigonometric ratios, watch the video below.
Kuta offers a great worksheet with solutions if you would like some further practice using the primary trigonometric ratios: Kuta Practise Worksheet
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