A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed the angle of depression to the boat is 16° 23'. When the boat stops, the angle of depression is 49° 29'. The lighthouse is 200 feet tall. How far did the boat travel from when it was first noticed until it stopped? Round to the nearest hundredth.
anonymous
 one year ago
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed the angle of depression to the boat is 16° 23'. When the boat stops, the angle of depression is 49° 29'. The lighthouse is 200 feet tall. How far did the boat travel from when it was first noticed until it stopped? Round to the nearest hundredth.

This Question is Closed

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439343722329:dw so solve for x then solve for y then answer (how far did the boat travel) = y  x

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0u ok with how to do that from here @PHUNISH ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but isn't there some formula use for this or do you just do it that way?

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0yep, but from here its just triangulation... as it's 2 right angled triangles if u look at it the right way so i'd use the Sine Rule for these ones (see attached)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay thanks again I have like 3 or 4 more lol sorry but thanks for the explanation!

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0nah wait hang on: easier to use SOH CAH TOA for these (right angled, my bad  duhmoment)

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0sine (o) = opposite / hypotenuse... etc

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay thats what I thought haha
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.