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DiKsa [7]
3 years ago
6

Help please, read question fully. geometry

Mathematics
1 answer:
aleksley [76]3 years ago
3 0

Answer:

  30 inches

Step-by-step explanation:

Assuming the lengths are measured when B lies between A and C on a line, the segment addition theorem applies:

  AC = AB +BC

  42 = AB + 12 . . . . . fill in the given numbers

  30 = AB . . . . . . . . . subtract 12

The length of AB is 30 inches.

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