A line is a one-dimensional shape that is straight. The length of the line segment AC is 53 mm.
What is a line?
A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.
For the given problem, the diagram can be made as shown below. Since the length of the complete line segment, AB is 7.8 cm(78 mm). While the length of the line segment BC is 25 mm. therefore, the length of AC is the difference between the length of the two line segments.
AC = AB - BC
AC = 78 mm - 25 mm
AC = 53 mm
Hence, the length of the line segment AC is 53 mm.
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