A community for students.
Here's the question you clicked on:
 0 viewing
cherrilyn
 4 years ago
trigonometry!!
a man standing 100ft away from a radio station observes that the angle of elevation to the base of the antenna mounted at the edge of the roof on top of the building is 25degrees. he also notices that the angle of elevation to the top of the antenna is 40degrees. approximate the height of the antenna on top of the building to the neraest foot.
cherrilyn
 4 years ago
trigonometry!! a man standing 100ft away from a radio station observes that the angle of elevation to the base of the antenna mounted at the edge of the roof on top of the building is 25degrees. he also notices that the angle of elevation to the top of the antenna is 40degrees. approximate the height of the antenna on top of the building to the neraest foot.

This Question is Closed

cherrilyn
 4 years ago
Best ResponseYou've already chosen the best response.0can you show me how to solve

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Do you want an explanation?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327492056293:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so, first, do you get the main picture?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The angle between formed by the base of the radio station, the person, and the top is 40 degrees and the angle formed between the person, base, and the bottom of the antennae is 25

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0This is where the sine rule comes in. We have the length of one side: 100m We know every angle in the system. These conditions make the sine rule the best formula.

cherrilyn
 4 years ago
Best ResponseYou've already chosen the best response.0okay ... woops i was trying to use tangent

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[100\div \sin 65=x \div \sin 25\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x is the length of the distance from the base of the network station to the antennae.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Haha, yeah, I do that a lot :P so, x turns out to be 46.63 meters(about)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0then, we need to find the whole distance from top to bottom. Once you get the whole distance and subtract 46.63, we get the part you're looking for

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so, using the same equation...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[100\div \sin 65=y \div \sin 40\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The result of this is 83.91(about)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0subtract the two and you've got 37.28 which is your answer XD

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The explanation's kinda funky, but do you get it?

cherrilyn
 4 years ago
Best ResponseYou've already chosen the best response.0couldn't i just use tangent
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.