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PLEASE HELP ASAP!!!! I GIVE A BRAINLIEST TO THE RIGHT ANSWER!!!!

You survey two oak trees across a narrow but deep gorge. The results of your survey are shown below.



Which expression below is equivalent to how many feet the oak trees are from each other?

answer choices are in the pics

PLEASE HELP ASAP I GIVE A BRAINLIEST TO THE RIGHT ANSWER You survey two oak trees across a narrow but deep gorge The results of your survey are shown below Whic class=
PLEASE HELP ASAP I GIVE A BRAINLIEST TO THE RIGHT ANSWER You survey two oak trees across a narrow but deep gorge The results of your survey are shown below Whic class=
PLEASE HELP ASAP I GIVE A BRAINLIEST TO THE RIGHT ANSWER You survey two oak trees across a narrow but deep gorge The results of your survey are shown below Whic class=
PLEASE HELP ASAP I GIVE A BRAINLIEST TO THE RIGHT ANSWER You survey two oak trees across a narrow but deep gorge The results of your survey are shown below Whic class=
PLEASE HELP ASAP I GIVE A BRAINLIEST TO THE RIGHT ANSWER You survey two oak trees across a narrow but deep gorge The results of your survey are shown below Whic class=

Respuesta :

gustanika
Use cosine law to solve the problem. See image attached.
What we're looking for is the length of side A (a side which is opposite with angle A).

This is the formula of cosine law
A² = B² + C² - 2BC cos A

Input the numbers
A² = 75² + 90² - 2(75)(90) cos 85°
A = [tex] \sqrt{75^{2}+90^{2}-2(75)(90)cos85^{0}}[/tex]
A = [tex] \sqrt{90^{2}+75^{2}-2(90)(75)cos85^{0}}[/tex]
Ver imagen gustanika

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