Results 1 to 12 of 12
Like Tree6Thanks
  • 1 Post By richard1234
  • 2 Post By Wilmer
  • 1 Post By Wilmer
  • 1 Post By Wilmer
  • 1 Post By Wilmer

Math Help - Triangles. help me with these questions please

  1. #1
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Triangles. help me with these questions please

    Help please.. so my teacher gave this extremely hard geometry questions without even explaining it clearly. so i'm stucked and confused.. help me with these questions please!
    as much as possible, please explain so i can do it on my own when it comes to our test.. or if you dont want to answer, just explain it to me so i can answer it on my own..
    P.S: I removed numbers 1, 3, 4, 5, 6 and 8 because I already solved their answers.. thanks

    2.Can a triangle have angles equal to
    a. 55
    , 65, 70
    b. 53
    , 64, 73
    c. 80
    , 105, 5
    7. In
    (triangle)△DEF, <D, <E and <F -44 (deg), Find <D and <E




    thanks guys!
    thank you so much.. you don't need to answer all of them.. only if you can.. i need help here.. explain please..
    Last edited by elmothemonkey; July 7th 2012 at 04:08 AM. Reason: [Solved]
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jun 2012
    From
    AZ
    Posts
    616
    Thanks
    97

    Re: Triangles. help me with these questions please

    The sum of the angles of any triangle is 180. You can use that fact for nearly all of the problems.

    For example, 1a. 55 + 75 + x = 180. Simplifying LHS gives 130 + x = 180 --> x = 50.
    Thanks from elmothemonkey
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Re: Triangles. help me with these questions please

    thanks.. but what about number two? it has three.. :|| what am i going to do?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,102
    Thanks
    68

    Re: Triangles. help me with these questions please

    Quote Originally Posted by elmothemonkey View Post
    ...what am i going to do?
    Quit blaming your teacher and start listening in class...
    Thanks from elmothemonkey and richard1234
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Re: Triangles. help me with these questions please

    I'm sorry ^ But it's true that he didn't explain to us these questions. I'm not blaming him. I'm telling the truth..
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,102
    Thanks
    68

    Re: Triangles. help me with these questions please

    That's not really my point:
    if you do not know that a triangle has a total of 180 degrees, then there's not much
    that can be done HERE to help you: you need your teacher, like it or not...
    Thanks from elmothemonkey
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Re: Triangles. help me with these questions please

    im sorry.. im really slow that why i didnt really get the questions at first and when richard1234 explained some of it i tried doing them that's why i have deleted a few of my questions already... analyzing questions are my problem. ;D but what i really cannot do is 2 and 7.. which is real confusing..
    Follow Math Help Forum on Facebook and Google+

  8. #8
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,102
    Thanks
    68

    Re: Triangles. help me with these questions please

    2.Can a triangle have angles equal to
    a. 55, 65, 70
    b. 53, 64, 73
    c. 80, 105, 5

    Add the angles: is the sum = 180 degrees? If not, then NOT a triangle

    7. In (triangle)△DEF, <D, <E and <F -44 (deg), Find <D and <E

    YOU read that...does it make any sense? WHAT is equal to -44 ?
    Thanks from elmothemonkey
    Follow Math Help Forum on Facebook and Google+

  9. #9
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Re: Triangles. help me with these questions please

    OH lol i'm sorry abt number 7..
    it's
    in triangle DEF, angle D = angle E and angle F = 44degrees ; find angle D and angle E
    Follow Math Help Forum on Facebook and Google+

  10. #10
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,102
    Thanks
    68

    Re: Triangles. help me with these questions please

    C'mon Elmo, that's easy...
    Since angle F = 44 then angle D + angle E = 180 - 44 = 136;
    and since angle D = angle E then ?????
    Thanks from elmothemonkey
    Follow Math Help Forum on Facebook and Google+

  11. #11
    Newbie
    Joined
    Jul 2012
    From
    Philippines
    Posts
    8

    Re: Triangles. help me with these questions please

    thanks they're 68deg solved.. ty again
    Follow Math Help Forum on Facebook and Google+

  12. #12
    MHF Contributor
    Joined
    Dec 2007
    From
    Ottawa, Canada
    Posts
    3,102
    Thanks
    68

    Re: Triangles. help me with these questions please

    Fine, Elmo...try HARDER next time !
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Two Questions of Triangles and Apothem
    Posted in the Geometry Forum
    Replies: 3
    Last Post: April 3rd 2012, 12:54 AM
  2. Replies: 3
    Last Post: March 19th 2011, 04:42 AM
  3. triangles
    Posted in the Geometry Forum
    Replies: 1
    Last Post: May 29th 2010, 10:21 AM
  4. Help! 2 questions - triangles and circles
    Posted in the Geometry Forum
    Replies: 1
    Last Post: November 1st 2008, 10:48 AM
  5. Questions about triangles and lines
    Posted in the Geometry Forum
    Replies: 3
    Last Post: September 20th 2008, 03:59 PM

Search Tags


/mathhelpforum @mathhelpforum