Two birds sit at the top of two different trees. The distance between the first bird and a bird-watcher on the ground is 14.1 feet. The distance between the bird-watcher and the second bird is 27.9 feet.

What is the angle measure, or angle of depression, between this bird and the bird-watcher?

Question

Two birds sit at the top of two different trees. The distance between the first bird and a bird-watcher on the ground is 14.1 feet. The distance between the bird-watcher and the second bird is 27.9 feet.

What is the angle measure, or angle of depression, between this bird and the bird-watcher?

anonymous · Answer

https://cv-sultan.brainhoney.com/Resource/23627040,1F3,0,0,0/Assets/74740_53c6c981/0700_g7_q4.jpg

anonymous · Answer

30.4
	59.6
	63.2
	87.9

love_ranaa · Answer

30.4

bibby · Answer

sin(x)=opposite/hypotenuse
sin(x)=14.1/27.9
$sin^{-1}(sin(x))=sin^{-1}(\dfrac{14.1}{27.9})$

bibby · Answer

and so x = arcsin (or sin^-1) of 14.1/27.9

anonymous · Answer

so 30.4?

bibby · Answer

lol, just use a calculator http://www.wolframalpha.com/input/?i=arcsin(14.1%2F27.9)&t=crmtb01

anonymous · Answer

i got 59.6

anonymous · Answer

@bibby

bibby · Answer

I got 30.36

bibby · Answer

it's right there on the link I posted http://puu.sh/gnTOG.png

anonymous · Answer

okay thank you for help. i am really bad at using he calculators