Assume abc def. if ab = 12, bc = 15, and ac = 17, what is the length of ef

EF=15

Step-by-step explanation:

The legth of EF is the same as BC because both of these segments come at the end. For these sort of problems, you need to match up the line segments/angles on both sides of the equal side. For example, the line segment AB will be the same as DE because they are both in front of the equation on both sides. Hopefully this makes sense :)

i believe the answer is 68cm

step-by-step explanation:

i just took 34 x 2 because the space between v and y is the same as y to k.