Two circles intersect and have a common chord 10 in. long. The radius of one circle is 13 in. long and the centers of the circles are 16 in. apart. Find the radius of the other circle.

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A: Go Through the solution use cos formula and simplified use calculator.. Go through the solution.

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Q: Find the length of a side of an equilateral triangle if an altitude is 6 in. long.

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