I n parallelogram pq=5 and qr+ rs+sp+=21 then qr=?
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pq= rs ...so = qr...2 qr = 21-5= 16.so qr = 8
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in a parallelogram opposite sides are equal and parallel
so pq =rs=5
qe=sp=say x
qr+rs+sp+pq=21
x+5+x+5=21
2x+10=21
2x=21-10
2x=11
x=11÷2
x=5.5
so pq =rs=5
qe=sp=say x
qr+rs+sp+pq=21
x+5+x+5=21
2x+10=21
2x=21-10
2x=11
x=11÷2
x=5.5
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