The missing number is 6 because half of 18 is 9 and half of 12 is 6
Parallel lines are those on a plane that do not intersect while perpendicular lines are those that intersect at an angle of 90°.
<h3 /><h3>How are parallel and perpendicular lines different?</h3>
Parallel lines will never intersect with each other and will maintain the same distance from each other for as long as they are on the same plane.
Perpendicular lines on the other hand will intersect each other and will do so at a 90° angle. An example of such a line is the steps on a ladder which intersect the beam at a 90° angle.
Find out more on parallel lines at brainly.com/question/24607467.
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Answer:
A
Step-by-step explanation:
I think it is A because if you do the math when your double her time she has way more distance.
The options are wrong lol, it is -1/8
C multiply 1/2 by 10 and 1/5 by 2
