What is the radius of a circle if the equation of its function is given by x^2 + y^2 = r^2?
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Find the square root of 169 and add it to the square root of 144. Multiply the result by the square root of 121. Round the answer to the nearest whole number.
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Math Question: Find the length of the hypotenuse of a right triangle with one leg measuring 8 units and the other leg measuring 15 units.