Answer:
use the cosine (cos)
Step-by-step explanation:
There are three trig functions:
sin
cos
tan
An easy way to remember which sides go with which function is the saying:
soh - cah - toa
so....breaking down the acronoym
sin refers to <u>opposite</u> over <u>hypotenuse</u>
cos refers to <u>adjacent</u> over <u>hypotenuse</u>
tan refers to <u>opposite</u> over <u>adjacent</u>
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Hope this helps!!!! :)