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    I'm currently stuck on this question:


    If I want to find the perimeter, it'll be :
    3x + 2 + x + 2 + 5x

    But I'm not sure what the long slanted hyptonuse is. I know I'm meant to use pythagoras.

    Would the slanted length be , 3x^2 + 4x^2 = c^2 ?

    I got 3x lenght from the left , and 4x as 2+5x - 2+x to find the length of the triangle.
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    (Original post by Gelato)
    I'm currently stuck on this question:


    If I want to find the perimeter, it'll be :
    3x + 2 + x + 2 + 5x

    But I'm not sure what the long slanted hyptonuse is. I know I'm meant to use pythagoras.

    Would the slanted length be , 3x^2 + 4x^2 = c^2 ?

    I got 3x lenght from the left , and 4x as 2+5x - 2+x to find the length of the triangle.
    Sort of... I mean, 3x^2 + 4x^2 = c^2 should actually be (3x)^2 + (4x)^2 = c^2. But this is an equation, and not a length; but the equation gives you the length (you need to solve for c, which is the length of the slanted edge).
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    (Original post by Gelato)
    Would the slanted length be , 3x^2 + 4x^2 = c^2 ?
    Yes. I'm assuming you're squaring each term but didn't include brackets. Find c.
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    (Original post by Gelato)
    But I'm not sure what the long slanted hyptonuse is. I know I'm meant to use pythagoras.

    Would the slanted length be , 3x^2 + 4x^2 = c^2 ?
    .
    The slanted length is c, but yeah you would use that equation to work it out

    PS: Note that it's (3x)^2 not just 3x^2 - but you probably knew that already.
 
 
 
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