A fixed area of a rectangle is an area that doesn't change. An area is a quantity that measures the space of a shape.
Consider this example:
A = length x width, which is the formula of a rectangle
If A is fixed, then it depends on what values length and width are. Then, length is indirectly proportional to width in order for A to remain fixed.
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A fixed area is simply an area that doesn't change. The length simply just has to be proportional (or equal) to the Area, for the rectangle to be fixed. Let me know if I'm wrong, and have a good day!
For a fixed perimeter, the area will always be the same, regardless of how you describe the rectangle.
The greatest area for a fixed perimeter will be when all the sides are equal or when the rectangle approaches the shape of a square.
the area of a rectangle = length x widthwe can rearrange this to give uslength of a rectangle = area/ width
The formula for the area of a rectangle is length x breadth. In order to prove this works, work out an area of a rectangle using that formula.
you split your shape in half, (The rectangle and the triangle), by putting a line through it and then calculate the area of the rectangle and then calculate the area of the triangle, half the area of the triangle then add the area of the triangle and the rectangle together!Then you should have your answer!