You are building a rectangular garden against the back of your house, using 80 feet of fencing. The area of the garden needs to be greater than 400 square feet but less than 600 square feet. Which interval(s) represent possible lengths, in feet, for the horizontal edges of the garden? (0, 10) Union (30, 40) (20 minus 10 StartRoot 2 EndRoot, 20 + 10 StartRoot 2 EndRoot) (0, 20 minus 10 StartRoot 2 EndRoot) union (20 + 10 StartRoot 2 EndRoot, 40) (20 minus 10 StartRoot 2 EndRoot, 10) Union (30, 20 + 10 StartRoot 2 EndRoot)

The area is the quantity of space in the perimeter of a 2nd shape. its miles are measured in rectangular devices, including cm², m², and so forth. To identify the vicinity of a rectangular formula or different quadrilateral, you have to multiply the length by way of the width. as an example: A rectangle with sides of three cm and four cm would have a place of 12 cm².

What's the formula of area?

Given a rectangle with duration l and width w, the formula for the vicinity is A = lw (rectangle). this is, the region of the rectangle is the length improved with the aid of the width. As a unique case, as l = w in the case of a square, the vicinity of a rectangular with facet duration s is given via the formula: A = s2 (rectangular).

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