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Ann cobb lives 20 miles due north of her favorite radio station. while driving due east from her house, she was able to keep the radio signal for 75 miles. what is the broadcasting range of her favorite radio station?

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AL2006
She starts 20m north and drives 75m east. If you draw a picture of this, you have a right triangle, and the straight line from Ann to the radio station is the hypotenuse of the triangle. Its length is the square root of (75^2+20^2) and that's about 77.6 miles.

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