495 because 12 choose 8 is 495
obtuse angle
hope it helps you ❣❣
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Width = 9cm
Length = 18cm
<u>Explanation:</u>
Let width = b,
So, length = 2b
Perimeter of rectangle = 2x(length + width)
According to the question,

Hence,
Width = 9cm
Length = 18cm
That would be 128+32=160-96=64?
Answer:
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Step-by-step explanation: