What is the height, in meters, of the river dam?

220 sin 40°
220 cos 40°
220/ cos 40
220/ tan 40

Question

What is the height, in meters, of the river dam?

220 sin 40° 
220 cos 40° 
220/ cos 40
220/ tan 40

anonymous · Answer

attachment

anonymous · Answer

assuming the 220 is the length of the hypotonuse I think you can just evaluate ussing 220 * sin40

anonymous · Answer

Oh from the figure use cosine instead 

220*cos40 :)

anonymous · Answer

sorry it took so long and thank you

anonymous · Answer

:)

anonymous · Answer

Ok so long as you understand why it 220 cos40 :)

anonymous · Answer

im lookin at my note trying to figure out y  lol

anonymous · Answer

Well because you have to picture yourself standing on the given angle. 

Cosine is the adjecent and sine is oppossite. 

Adjecent means just right next to you and oppossite means the side in front of you aka oppossite of the angle.

anonymous · Answer

ok that makes lots of since thank you so much can u help me with the other ones

anonymous · Answer

what is the thread title of what you need help on?

anonymous · Answer

Based on the figure, which equation is true?

anonymous · Answer

i just reposted