Two boats start their journey from the same point A and travel along directions AC and AD, as shown below.

What is the distance, CD, between the boats?

Question

Two boats start their journey from the same point A and travel along directions AC and AD, as shown below.


What is the distance, CD, between the boats?

anonymous · Answer

Do you have a diagram?

anonymous · Answer

http://www.chino0988-alternativeedctr-pps.gradpoint.com/Resource/3161160,66,0,0,0,2,1/Assets/59025_51dc582f/image0044e3941ae.jpg

anonymous · Answer

i know you can use 30 60 90 to find DB but idk what to do after that ? i get the wrong answers

anonymous · Answer

That is a good start. We know DB and we want DC.
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anonymous · Answer

so if we know length DB, and we subtract length BC from it... we will find CD (the distance between the two boats!)

anonymous · Answer

finding BC should be pretty easy because we know one side (400ft) and we know the angle 60 degrees

anonymous · Answer

to find BC we subtract the two ?

anonymous · Answer

sorry im really bad at math

anonymous · Answer

nope, we find BC and then subtract BC from BD (I will draw it)

anonymous · Answer

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