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    (Original post by evanescent)
    Its a rhombus with a height of 2cm and length of 2 root 3 and it says to work out the perimeter and all of the angles
    Can you post a picture of the question?
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    (Original post by evanescent)
    Its a rhombus with a height of 2cm and length of 2 root 3 and it says to work out the perimeter and all of the angles
    Just work out the perimeter as usual: P=2(l+b)
    =2(2+2sqrt3)
    =4+4sqrt3
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    (Original post by Hydeman)
    Can you post a picture of the question?
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    (Original post by evanescent)
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    Because it's a rhombus, each side is equal to every other side. We're not allowed to post full solutions but I can still help you.

    Consider the right angled triangles formed if you draw a big 'plus sign' in the middle of the shape as it is in the picture. Can you see how you can work out two of the sides of any of right angled triangles from the lengths given? Once you've worked that out, use Pythagoras's theorem to work out the third side. To work out the perimeter, you should know what to do when you've worked out one side.
 
 
 
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