Results are out! Find what you need...fast. Get quick advice or join the chat
Hey! Sign in to get help with your study questionsNew here? Join for free to post

Triangle

Announcements Posted on
The Grow your Grades contest is here, join in to help each other achieve your study goals 22-01-2015
  1. Offline

    ReputationRep:
    XYZ is a right angle triangle.

    XY=8 cm
    XZ=6 cm
    ZY=10 cm
    Angle x = 90 degrees

    What is the length of the perpendicular distance of x from ZY

    How do I work this question out.

    Do I use COS SIN TAN or something.
  2. Offline

    ReputationRep:
    (Original post by zed963)
    XYZ is a right angle triangle.

    XY=8 cm
    XZ=6 cm
    ZY=10 cm
    Angle x = 90 degrees

    What is the length of the perpendicular distance of x from ZY

    How do I work this question out.

    Do I use COS SIN TAN or something.
    Yeah you can use sohcahtoa

    Specifically that sin(theta) = opp/hyp

    Figure out what sin(theta) is for either angle. Now draw in the perpindicular and you should have a new right angled triangle containing theta, which will give you sin(theta) = L/something (where L is the perpendicular distance you're looking for.

    Alternatively you can use simultaneous equations, area of triangles and probably more methods. You can ask me about those if you'd like, too.
  3. Offline

    ReputationRep:
    (Original post by hassi94)
    Yeah you can use sohcahtoa

    Specifically that sin(theta) = opp/hyp

    Figure out what sin(theta) is for either angle. Now draw in the perpindicular and you should have a new right angled triangle containing theta, which will give you sin(theta) = L/something (where L is the perpendicular distance you're looking for.

    Alternatively you can use simultaneous equations, area of triangles and probably more methods. You can ask me about those if you'd like, too.
    I would equate area. http://www.waldomaths.com/TriArea1NL.jsp
  4. Offline

    ReputationRep:
    (Original post by steve2005)
    I would equate area. http://www.waldomaths.com/TriArea1NL.jsp
    Yeah as I said there are a fair few methods to tackle this question

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: May 27, 2012
New on TSR

Everyday things you can't do

Why do they make everything so difficult?

Article updates
Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.