The positive solution is \(v = 49.665\).
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- \(v = \frac{40 \pm \sqrt{1600 + 1920}}{2}\).
- \(v = \frac{40 \pm \sqrt{3520}}{2}\).
- \(v = \frac{40 \pm 59.33}{2}\).
- A circle is inscribed in a square with side length 10 cm. Calculate the area of the region inside the square but outside the circle.
- Area of the square is \(10^2 = 100\) cm\(^2\).
- Area of the circle is \(\pi \times 5^2 = 25\pi\) cm\(^2\).
