6. A 400m track has the shape of two semi-circles at the ends of a rectangle. The straight sections of the track must be at least 100m in length, and the radius of the semi-circles must be at least 20m. Find the dimensions of the tract that encloses the maximum area. f(A)=(2x+2y) + (?y) = 2x + 2y + ?y
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We are given that the straight sections of the track must be at least 100m in length, and the radius of the semi-circles must be at least 20m. Let's denote the length of the straight sections as x and the radius of the semi-circles as r. Show more…
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