1.

In the given figure, circles with centres C and D intersect at points P and Q. If AB is parallelto CD and AB = 10 cm, then find the length ofCD​

Answer»

5Step-by-step explanation:we one that if you draw a perpendicular line from the CENTRE to chord then that line will bisect that line so AM= MP and NP=NBand we know that AB= AM+MP+NP+NBAB= 2(MP+PN)---eq1 because AM=MP and NP=NBand from the FIGURE if you see CDNM is a rectangle so NM=CDfrom eq1 NM= 10/2=5so CD=5



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