Maths year 11

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    (Original post by z_o_e)
    My teacher did that on the board and I copied it :/

    I'll get a few past paper questions

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    Perpendicular means that the two lines intersect at a 90 degree angle. - I attempted to make what I did as clear as possible, but it's probably best to watch some videos on it.




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    (Original post by 34908seikj)
    Perpendicular means that the two lines intersect at a 90 degree angle. - I attempted to make what I did as clear as possible, but it's probably best to watch some videos on it.




    Got a bit of it!!

    So the point they give me I put my compass of that and draw a semi circle. And follow underneath the semicircle and that gives 2 semi circles... and then down the point and between both circles draw a straight line..

    So ill do an example..


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    (Original post by z_o_e)
    Got a bit of it!!

    So the point they give me I put my compass of that and draw a semi circle. And follow underneath the semicircle and that gives 2 semi circles... and then down the point and between both circles draw a straight line..

    So ill do an example..


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    That looks quite wrong, your construction lines should resemble mine.

    Watch this:
    https://www.youtube.com/watch?v=wDJrOWMeYOc

    It pretty much covers everything you'll need for constructions and loci.
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    (Original post by 34908seikj)
    That looks quite wrong, your construction lines should resemble mine.

    Watch this:
    https://www.youtube.com/watch?v=wDJrOWMeYOc

    It pretty much covers everything you'll need for constructions and loci.
    Working on it


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    (Original post by z_o_e)
    Working on it


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    Yup, they're right. No need to draw that other circle on the second one though.
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    (Original post by 34908seikj)
    Yup, they're right. No need to draw that other circle on the second one though.
    Ergh I mess up when it comes to holding a compass eegh

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    (Original post by 34908seikj)
    Yup, they're right. No need to draw that other circle on the second one though.
    I kind of know how to do arcs now but what does this mean?


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    (Original post by z_o_e)
    I kind of know how to do arcs now but what does this mean?


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    You need to make your compass the size of the sides. Draw the base first, then the sides.
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    (Original post by 34908seikj)
    You need to make your compass the size of the sides. Draw the base first, then the sides.
    I give up. I can't do this.


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    (Original post by z_o_e)
    I give up. I can't do this.


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    No, I respectfully stop you from giving up.

    http://imgur.com/a/jt71t

    The photos and steps might not be in the right order - sorry was in a rush, will be back in an hour.
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    (Original post by 34908seikj)
    No, I respectfully stop you from giving up.

    http://imgur.com/a/jt71t

    The photos and steps might not be in the right order - sorry was in a rush, will be back in an hour.
    why you draw a line which is 6.7?

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    (Original post by z_o_e)
    why you draw a line which is 6.7?

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    The base is 6.3 - i misread it as 6.7 sorry.
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    (Original post by 34908seikj)
    The base is 6.3 - i misread it as 6.7 sorry.
    I got how to do this question!!



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    (Original post by z_o_e)
    I got how to do this question!!



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    Nice, so you understand how to construct triangles using loci now?
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    (Original post by 34908seikj)
    Nice, so you understand how to construct triangles using loci now?
    Going to do a few examples then ill find out
    Maths isn't that bad. I just never spent that much time working on it lol



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    (Original post by 34908seikj)
    Nice, so you understand how to construct triangles using loci now?
    I got this ;/

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    (Original post by z_o_e)
    I got this ;/

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    No compass needed!



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    (Original post by 34908seikj)
    No compass needed!



    Oh

    The second question I got this

    I checked the answer page my angle A was exactly 64 D
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    (Original post by z_o_e)
    Oh

    The second question I got this

    I checked the answer page my angle A was exactly 64 D
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    Yeah, nice. Just remember if they give you two sides and an angle or two angles and a side, you don't need to use a compass to construct the triangle!
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    (Original post by 34908seikj)
    Yeah, nice. Just remember if they give you two sides and an angle or two angles and a side, you don't need to use a compass to construct the triangle!
    Can I still use it incase?

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