Results 1 to 2 of 2

Math Help - solving rt triangles

  1. #1
    Junior Member
    Joined
    Nov 2006
    Posts
    62

    solving rt triangles

    I have a test on wed and I want to make sure I know what I am doing.
    I know sin angle=a/c, cos angle= b/c, and tan angle= a/b and for a rt trianlge a^2+b^2=c^2. The problem I am working on gives the angle 27 degrees and we know another angle is 90 degrees, I used a, b and c for the sides and a=3. so, I took sin27=3/c, c=3/sin27 = 6.61. Then I took tan27=3/b= b=3/tan27= 5.88. Does this look correct and is there a way to check to see if it is right?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Forum Admin topsquark's Avatar
    Joined
    Jan 2006
    From
    Wellsville, NY
    Posts
    9,962
    Thanks
    349
    Awards
    1
    Quote Originally Posted by kcsteven View Post
    I have a test on wed and I want to make sure I know what I am doing.
    I know sin angle=a/c, cos angle= b/c, and tan angle= a/b and for a rt trianlge a^2+b^2=c^2. The problem I am working on gives the angle 27 degrees and we know another angle is 90 degrees, I used a, b and c for the sides and a=3. so, I took sin27=3/c, c=3/sin27 = 6.61. Then I took tan27=3/b= b=3/tan27= 5.88. Does this look correct and is there a way to check to see if it is right?
    I didn't check the numbers, but the logic looks correct. As to checking your answer:

    "When it doubt, draw it out!" If you've got a protractor and a ruler you can draw these.

    -Dan
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Solving right angle triangles.
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: April 28th 2010, 07:12 PM
  2. solving triangles
    Posted in the Algebra Forum
    Replies: 7
    Last Post: October 10th 2009, 05:36 PM
  3. problem solving with triangles.
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: July 20th 2008, 02:48 PM
  4. problem solving with triangles.
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: July 19th 2008, 07:46 PM
  5. Solving triangles
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: July 18th 2008, 10:18 AM

Search Tags


/mathhelpforum @mathhelpforum