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(i) TURN
NR=TU (opposite sides of a parallelogram are equal)
4x+2=28
4x=28-2
4x=26
x= 26/4
x=6.5
NT=RU
5y-1=24
5y=24+1
5y=25
y=25/5
y=5
(ii) BURN
x+3=18 and x+y=20 [Diagonals of parallelogram bisect each other]
x+3=18
x=18-3
x=15
x+y=20
15+y=20
y=20-15
y=5
NR=TU (opposite sides of a parallelogram are equal)
4x+2=28
4x=28-2
4x=26
x= 26/4
x=6.5
NT=RU
5y-1=24
5y=24+1
5y=25
y=25/5
y=5
(ii) BURN
x+3=18 and x+y=20 [Diagonals of parallelogram bisect each other]
x+3=18
x=18-3
x=15
x+y=20
15+y=20
y=20-15
y=5
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