Robert H.

asked • 04/17/19

I really need hel on this problem

https://imgur.com/a/DtjZ3e8

1 Expert Answer

By:

Khoa N. answered • 04/17/19

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Calculus Tutor - Master in Engineering

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Use cosine formula

a2+b2- abcosα = c2


a = 24.58 mi

b = 37.9 mi

α = 152.18 degrees


plug them in and take square root to find c

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Robert H.

i take a^2+b^2 and square root then minus abcosα? or do i take a^2+b^2- abcosα then sq root that answer?
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04/17/19

Khoa N.

take a^2+b^2- abcosα then sq root that answer
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04/17/19

Robert H.

Thank you, very much appreciated!
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04/17/19

Khoa N.

you are welcome
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04/17/19

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