An 8x8 rectangle is either a square, all of whose sides are 8 units long or it can be a rectangles whose opposite sides are 8 units long - but in different measurement units: for example, a rectangle whose sides are 8 centimetres and 8 metres.
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64
No, 8x8 is 64 and that is a perfect square... 69 is not!
Rectangle area = (rectangle width) x (rectangle height)
A = lw Area of a rectangle = length times width
The length of the rectangle is 18cm. The width of the rectangle is 9cm.