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Size:  27.2 KBfor the area of the badge (part b), can i work out the area of a square OBAC then subtract the area of the sector OBC? So the area of the square is 64mm^2 and the area of the sector is 28.8mm^2. So the area of the badge is 35.2mm^2?
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    (Original post by alesha98)
    Name:  2016-05-23.png
Views: 79
Size:  27.2 KBfor the area of the badge (part b), can i work out the area of a square OBAC then subtract the area of the sector OBC? So the area of the square is 64mm^2 and the area of the sector is 28.8mm^2. So the area of the badge is 35.2mm^2?
    The method is sound, BUT OBAC is not a square, it's a rhombus.
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    (Original post by alesha98)
    Name:  2016-05-23.png
Views: 79
Size:  27.2 KBfor the area of the badge (part b), can i work out the area of a square OBAC then subtract the area of the sector OBC? So the area of the square is 64mm^2 and the area of the sector is 28.8mm^2. So the area of the badge is 35.2mm^2?
    Yes by working out the area of the two triangles that make up OBAC
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    (Original post by ghostwalker)
    The method is sound, BUT OBAC is not a square, it's a rhombus.
    Oh ... thankyou, so how can i find the area of the badge? Is the area of the rhombus still 8x8?
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    (Original post by ghostwalker)
    The method is sound, BUT OBAC is not a square, it's a rhombus.
    oh i see, thankyou
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    (Original post by alesha98)
    oh i see, thankyou
    Sorted now, or do you still need the area of the rhombus?
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    (Original post by ghostwalker)
    Sorted now, or do you still need the area of the rhombus?
    I am good now, thankyou so much
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    (Original post by alesha98)
    I am good now, thankyou so much
    :party:
 
 
 
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