<p>So I realize this is probably really easy, I'm usually able to get problems like this but for some reason I'm completely blanking out on this one.
it's a really basic right triangles question.</p>
<p>"Two buildings are located 412m apart. The angle of declination between the two is 11.5 degrees. If the taller buildings height is 315m, what is the heigh of the shorter building?</p>
<p>please help! I really need to get this!</p>
<p>Hard to explain without a picture, but... the triangle will have a base of 412 and an angle of 90-11.5 opposite to that base at the top of the taller building.</p>
<p>Use tan(78.5)=412/difference in building height to find the difference in the heights, and then just subtract from 315 to find the height of the smaller building.</p>
<p>Hope that made sense/wasn't completely wrong. I didn't actually write anything down for that so I may have pictured it completely differently.</p>