7-3 Sine and Cosine (and Tangent) Functions 7-4 Evaluating Sine and Cosine
“Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.
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Transcript of “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.
![Page 1: “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.](https://reader035.fdocuments.us/reader035/viewer/2022062414/5a4d1bfd7f8b9ab0599ed109/html5/thumbnails/1.jpg)
“Wanna play a game?”
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8.3/8.4: Tangent, Sine, and Cosine Ratios
![Page 3: “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.](https://reader035.fdocuments.us/reader035/viewer/2022062414/5a4d1bfd7f8b9ab0599ed109/html5/thumbnails/3.jpg)
Tangent
Tangent:
tanAoppositeadjacent
![Page 4: “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.](https://reader035.fdocuments.us/reader035/viewer/2022062414/5a4d1bfd7f8b9ab0599ed109/html5/thumbnails/4.jpg)
Find the tangent ratios for and .
Tangent
J
K
Find the tangent ratios for and .
T
U
![Page 5: “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.](https://reader035.fdocuments.us/reader035/viewer/2022062414/5a4d1bfd7f8b9ab0599ed109/html5/thumbnails/5.jpg)
The following triangles are similar.
Tangent
2
4.6
23.5° 1.5
3.45
23.5°
![Page 6: “Wanna play a game?”. 8.3/8.4: Tangent, Sine, and Cosine Ratios.](https://reader035.fdocuments.us/reader035/viewer/2022062414/5a4d1bfd7f8b9ab0599ed109/html5/thumbnails/6.jpg)
TangentFind the value of w to the nearest tenth.
1)
2)
3)
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TangentFind the measure of and to the nearest degree. P Y
Find the measure of and to the nearest degree. H X
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Sine/Cosine
Sine:
sinAopposite
hypotenuse Cosine:
cosAadjacent
hypotenuse
SOHCAHTOA
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Use the triangle at the right to find the following. Leave answer in simplest radical form or as a reduced fraction.
Sine/Cosine
1) sinM
2) cosM
3) sinL
4) cosL
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Use the triangle at the right to find the following.
Your Turn!
Tsin 1)
Tcos 2)
Gsin 3)
Gcos 4)
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Find to the nearest degree.
Sine/CosineLm
Now, find to the nearest degree. Om
Hint: We can use sin, cos, OR tan
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Sine/CosineFind the value of x in the following triangles.
1)
2)
3)
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“This is the most magnificent discarded living room set I've ever seen”
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8.3/8.4: Tangent, Sine, and Cosine Ratios
HW: Worksheet 8.3-8.4