nezzy

An airplane leaves an airport and flies due west 120 miles and then 150 miles in the direction S 39.17°W. How far is the plane from the airport (round to the nearest mile)?

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nezzy

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nezzy

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@timo86m

SnuggieLad

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the sun is 92,960,000 miles or (149,600,000 km) from the earth

nezzy

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@Mertsj

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Use the law of cosines.

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|dw:1363201601765:dw|

nezzy

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i dont know how to do it when they have directions

Mertsj

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The direction tells you the angle. In your picture it shows you part of the angle.

timo86m

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|dw:1363201622034:dw| is my diagram looking ok?

Mertsj

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|dw:1363201741968:dw|

nezzy

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yes

nezzy

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@timo86m

timo86m

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mertsj is practically giving you the answer :)

nezzy

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ok. then just simplify the equation and that will give me "c" which would be how far the plane is from the airport?

Mertsj

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