A quadrilateral abcd circum- scribes a circle and ab = 6 cm, cd = 5 cm and ad = 7 cm. The length of side bc is
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We know a quadrilateral circumscribes a circle then
the sum of lenght of opposite sides must same.
In this question,ABCD is a Quadrilateral.
Here,AB=6 cm
CD=5 cm
AD=7 cm
For this type of question,AB+CD=AD+BC
=>6+5=7+BC
=>BC=6+5-7=4
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