Triangle
Maths and statistics discussion, revision, exam and homework help.
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Re: TriangleYeah you can use sohcahtoa(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.
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.Last edited by Intriguing Alias; 27-05-2012 at 17:14. -
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Re: TriangleI would equate area. http://www.waldomaths.com/TriArea1NL.jsp(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.Last edited by steve2005; 27-05-2012 at 17:26.
