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To convert radians to degrees, we use the formula:
degrees = radians * (180 / π)
So, for this angle:
degrees = (13π / 4) * (180 / π)
degrees = 13 * 180 / 4
degrees = 585 / 4
degrees = 146.25
Therefore, the angle 13π/4 radians is equal to 146.25 degrees.