# MATH

POINTS A, B, AND C ARE COLLINEAR. IF AB=7AM AND BC =13CM WHAT IS AC ANSWER

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1. Please do not type in capitals it is hard to read and is considered to be shouting.

If the points are co-linear then there are three possible arrangements

1. ABC
2. ACB
3. BAC

if AB=7 cm and BC = 17 cm then arrangement 2 is not possible because 7cm is not greater than 13 cm

In arrangement 1
A 7 cm B 13 cm C

so AC= 20 cm

In arrangement 3

B 7 cm A 7 ??x?? C and BC = 13 cm

so AC = 6 cm

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posted by Dr Russ

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