Is there a picture to go with this question?

In this case, the pattern is the number, in this case, 3, multiplied by the number below it.
See?

Hope this helped :)
Answer:
The telephone pole is 24 ft.
Step-by-step explanation:
30^2-18^2=b^2
900-324=b^2
576=b^2
\sqrt{576} =\sqrt{b^2}
24=b
b=height of telephone pole
False. Perpendicular lines run beside each other not through each other.