What is the average temperature (in degrees Celsius) of a city for the past 30 days if the daily temperatures were 25°C, 30°C, 28°C, 23°C, 26°C, and 24°C?
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Find the angle x in radians if sin(x) = 0.5.
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Math question: The sides of a triangle measure 12 cm, 9 cm, and 15 cm. Using Heron's Formula, find the area of the triangle.