understanding quadrilateral
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Step-by-step explanation:
In fig (iv)
3x-1=11 (opp. sides of llgm are equal)
=> 3x=11+1
=> x=12/3
=> x=4
and
2y-2=18 (opp. sides of llgm are equal)
=> 2y=18+2
=> y=20/2
=> y=10
in fig (v)
2y-1=17 (diagonals of llgm bisect each other)
=> 2y=17 +1
=> y=18/2
=> y=9
x+5=15 (diagonals of llgm bisect each other)
=> x=15-5
=> x=10
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