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    Three points

    0,0 22,0 4,12

    They make up a triangle the area of the traingle is = 1/2 * 12 * 22

    Why is this and why can't you use the 4 instead of the 12?
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    Draw a sketch. The area of a triangle is half the base multiplied by the perpendicular height.

    The height is the y value.
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    (Original post by IShouldBeRevising_)
    Three points

    0,0 22,0 4,12

    They make up a triangle the area of the traingle is = 1/2 * 12 * 22

    Why is this and why can't you use the 4 instead of the 12?
    If you plot the triangle on a set of axis, you'll find the base is on the x axis, since area = 1/2 x base x height, the height is 12 not four as 12 is y coordinate
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    If you take (0,0) and (22, 0) to be the base, then the perpendicular co-ordinate will be parallel to the y-axis. Have you tried a sketch?
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    if you sketch the triangle you will find that the horizontal base is 22, the vertical height is 12.
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    (Original post by Mr M)
    sketch
    (Original post by raiden95)
    plot
    (Original post by Savvy Sage)
    sketch
    (Original post by the bear)
    sketch
    A theme appears to be emerging ...
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    (Original post by Mr M)
    A theme appears to be emerging ...
    Damn it I'm the odd one out
 
 
 
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