Point a is the midpoint of xy. Point y is the midpoint of xz. Point z is the midpoint of ab. If xa is 2cm long how long is xb
Need help on this question nust make a picture and the answer
2 Answers By Expert Tutors
You have neglected to say that ALL points mentioned are collinear.
Draw the picture; points (all of whose names ought to be single capital letters) occur in this order, from left to right:
X A Y Z B and the lengths are
2 2 4 6, I believe.
Check it out, carefully.
from the information given...
xa=ay, xy=yz, az=zb
ay=2 so xy=4
zb=6 because zb=az and az=ay+yz
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