4. Trigonometry
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For the given right triangle, we want to write the ratios for the sine, cosine, and tangent of ∠ J and ∠ L.
Let's start by identifying the hypotenuse of the triangle and the sides that are opposite and adjacent to ∠ J.
We see that the length of the hypotenuse is 65. The length of the side adjacent to ∠ J is 33 and the length of the side opposite to ∠ J is 56. With this information, we can find the desired ratios.
Ratio | Definition | Value |
---|---|---|
sin J | Length of leg opposite to∠ J/Length of hypotenuse | 56/65≈ 0.86 |
cos J | Length of leg adjacent to∠ J/Length of hypotenuse | 33/65≈ 0.51 |
tan J | Length of leg opposite to∠ J/Length of leg adjacent to∠ J | 56/33≈ 1.70 |
We already know the length of the hypotenuse is 65. Let's identify the sides that are opposite and adjacent to ∠ L.
The length of the side adjacent to ∠ L is 56 and the length of the side opposite to ∠ L is 33. With this information, we can find the desired ratios.
Ratio | Definition | Value |
---|---|---|
sin L | Length of leg opposite to∠ L/Length of hypotenuse | 33/65≈ 0.51 |
cos L | Length of leg adjacent to∠ L/Length of hypotenuse | 56/65≈ 0.86 |
tan L | Length of leg opposite to∠ L/Length of leg adjacent to∠ L | 33/56≈ 0.59 |