10. Two concentric circles with centre O have A, B, C and D as points – InterviewSolution

1.	10. Two concentric circles with centre O have A, B, C and D as points of12 cm andintersection with a line I as shown in the figure. If ADBC = 8 cm, find the length of AB and CD.
Answer» AD=AB+CD+BCAD=2AB+8cmAD-8cm=2AB2AB=(12-8)cm2AB=4cmAB=2cm:- CD=2cm

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