Question

plessss answer the 18th question......

Answer 1

IN triangle RSZ,

X is the midpoint of RS, (PX//RZ)

P is the midpoint of SR (converse of

midpoint theorem)

Hence, PS=PZ (P is the midpoint of

SR)

P is the midpoint of SR in triangle RSZ.

Then, Y is the midpoint of RZ (Converse of midpoint theorem )

Hence,RY=YZ (Y is the midpoint of RZ).