Question

can Anyone answer it with full explanation ​

Answer 1

Answer:

a) 24 cm  

b) 12√5 cm  

c) 10.81 cm  

Step-by-step explanation:  

From the  the figure in the Attachment we can say that  

OA = OB = 15 = radius of the circle  

and OP bisect chord CD in into halves  

⇒CP =PD  

In ΔOCP  

CO^2 =OP^2+CP

15^2 =9^2 +CP^2

⇒CP =12 cm

therefore PD= 12 cm and CD =2CP = 2*12= 24 cm

In ΔAPD

we can write

AP^2+ PD^2 =Ad^2

AD^2= 24^2+ 12^2

AD= 12√5 cm

now in ΔCPB

we can write:-

CP^2+ PB^2 = CB^2

CB^2 = 9^2 + 6^2= 10.81 cm

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