✓ In PQR ,P-M-Q and P-N-R IF PQ-18, PM - 12, PR-9 and NR =_______ Then MN||QR .
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Step-by-step explanation:
PQ=18cm
P-M-Q. hence PM+MQ=PQ
12+MQ=18
MQ=18-12=6
lly,. let NR=x and PN=9-x
In ∆PQR MN||QR
HENCE BY BASIC PROPORTIONALITY THEOREM
PM/MQ=PN/NR
12/6= 9-x/x
2x=9-x
2x+x=9
3x=93
x=3
hence NR= 3 units
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