Question

Answer the third one

Answer 1

As it is given that the triangles are similar, the corresponding sides are proportional i.e,

AB/CD=AM/CM=MB/MD

Substituting the given values we get,
y/z=x/MD
MD=(x×z) /y
=xz/y
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Answer 2

answer

DM=

|AMB=|CMD

AB//CD

MB/MC=MA/MD (Basic proportionality theorem)

x/z=DM/y

DM =xy/z