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alesha98
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#1
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Name:  2016-05-23.png
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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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ghostwalker
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(Original post by alesha98)
Name:  2016-05-23.png
Views: 81
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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AstarAstarA
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(Original post by alesha98)
Name:  2016-05-23.png
Views: 81
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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alesha98
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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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alesha98
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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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ghostwalker
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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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alesha98
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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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ghostwalker
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(Original post by alesha98)
I am good now, thankyou so much
:party:
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