Results 1 to 5 of 5

Math Help - Right Triangles

  1. #1
    Junior Member
    Joined
    Feb 2008
    Posts
    74

    Right Triangles

    Am I doing the right steps for this?

    The question is: solve each triangle as described.

    c= 9.5 b= 3.7



    Do i do the pygahthom therom [sry spelln] first or can i just go ahead and fing the sides by doing 90 - one of the sides?

    I just did 9.5^2 - 3.7^2 = 669.89

    What do I do now??
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,621
    Thanks
    426
    a = \sqrt{c^2 - b^2}
    Follow Math Help Forum on Facebook and Google+

  3. #3
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by topaz192 View Post
    Am I doing the right steps for this?

    The question is: solve each triangle as described.

    c= 9.5 b= 3.7



    Do i do the pygahthom therom [sry spelln]
    since you spelled "sorry" as "sry" and "spelling" as "spelln", i guess spelling wasn't a priority for you in the first place

    I just did 9.5^2 - 3.7^2 = 669.89

    What do I do now??
    you are on the right track, but i don't know what happened. how exactly did you get 669.89? just looking at the expression we know that it has to be less than 100. now note that the answer you get is a^2. so how do we find a?

    then recall the required trig ratios. pick your fancy, you only need to find one angle, then the other is easy and no trig ratios are required

    \text{sine } = \frac {\text{opposite}}{\text{hypotenuse}}

    \text{cosine } = \frac {\text{adjacent}}{\text{hypotenuse}}

    \text{tangent } = \frac {\text{opposite}}{\text{adjacent}}
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Junior Member
    Joined
    Feb 2008
    Posts
    74
    Ok i got 76.56 and the square root would be: 8.75


    So do i just do it as

    TAN a = 3.7 / 9.5 and get 21.28?

    Is that all?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Junior Member
    Joined
    Feb 2008
    Posts
    74
    Quote Originally Posted by Jhevon View Post
    since you spelled "sorry" as "sry" and "spelling" as "spelln", i guess spelling wasn't a priority for you in the first place
    lol i realized that afterwards, sorry it's a habit.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: March 19th 2011, 04:42 AM
  2. Triangles
    Posted in the Geometry Forum
    Replies: 2
    Last Post: March 8th 2011, 10:37 AM
  3. Triangles
    Posted in the Geometry Forum
    Replies: 1
    Last Post: April 12th 2009, 05:59 AM
  4. triangles
    Posted in the Geometry Forum
    Replies: 1
    Last Post: March 24th 2009, 07:06 AM
  5. How Many Different Triangles?
    Posted in the Geometry Forum
    Replies: 0
    Last Post: October 16th 2008, 06:29 PM

Search Tags


/mathhelpforum @mathhelpforum