Hello i am stuck on two geometry problems which maybe you guys can help me with. Thnx

[aspillane789]

the first question is

I Have to find the Sin, cos, and Tan of this triangle. Here is the link to the diagram http://img17.imageshack.us/img17/3259/onlinemathhelp.jpg

Ok so i know that the opposite from theta is 2 times the square root of 11. But i am very bad with trig and i was hoping you guys could help me.

The second question is:

If a 21 yard sidewalk is slanted 73 degrees from the vertical. Calculate the vertical change between the two ends of the sidewalk. Here is the picture to the diagram http://img688.imageshack.us/img688/7424/23geometrypic.jpg

I have been stuck on this problem forever with no luck. I searched online and even asked a friend but they could not help. I really don't know how to start on this problem, but if you guys can help with this i would really appreciate it.

Thank you all for your time and effort to help me

 

[Deleted member 4993]

the first question is

I Have to find the Sin, cos, and Tan of this triangle. Here is the link to the diagram http://img17.imageshack.us/img17/3259/onlinemathhelp.jpg

Ok so i know that the opposite from theta is 2 times the square root of 11. But i am very bad with trig and i was hoping you guys could help me.

The second question is:

If a 21 yard sidewalk is slanted 73 degrees from the vertical. Calculate the vertical change between the two ends of the sidewalk. Here is the picture to the diagram http://img688.imageshack.us/img688/7424/23geometrypic.jpg

I have been stuck on this problem forever with no luck. I searched online and even asked a friend but they could not help. I really don't know how to start on this problem, but if you guys can help with this i would really appreciate it.

Thank you all for your time and effort to help me

What did you try for the first set of problems?

For the second problem, draw a right angle triangle with slant side (hypotenuse) 21 yards. You need to find the height of the triangle.

Please share your work with us, indicating exactly where you are stuck - so that we may know where to begin to help you.

 

[mmm4444bot]

I Have to find the Sin, cos, and Tan of this triangle.

i know that the opposite from theta is 2 times the square root of 11.

But i am very bad with trig

First, a technical point: triangles do not have sines, cosines, or tangents. Angles do.

The angle theta in this exercise has a sine, cosine, and tangent; these are what the exercise wants.

Did you miss the first day of class? The right-triangle trig definitions are the easiest part of a trigonometry course.

2 sqrt(11) is correct for the length of the opposite side. Use it with the given lengths for the adjacent side and hypotenuse, as explained at the top of the related linked-lesson above.

Please show us your efforts, if you would like more help. At the very least, you must explain why you're stuck or what you're thinking. :cool:

(PS: Waiting forever on luck while you're stuck is not a good plan)

 

[HallsofIvy]

I guess the question is "do you know the definition of sine, cosine, and tangent?" If you do, this should be easy. If not, then the first thing you should have done on seeing "sine", "cosine" and "tangent" in the problem is look them up. Yes, we could list them for you, but you will remember better if you do the work yourself.