Math, asked by ndp2403, 6 months ago

in the adjoining fig o is center of circle PA is the tangent is the circle at point A if l(PA) = 5cm. then find m OAP​

Answers

Answered by Asthasingh7
1

Answer:

The  diameter  of  the  circle  =30cm.  

∴   Its  radius =OA=230cm=15cm.

∠AOP=90o  since  a  tangent  to  a  circle  makes  90o angle  with  the radius  joining  the  centre  and  the  point  of  contact  of the  tangent  to  the  circle.

So  ΔAOP  is  a  right  one  with  hypotenuse  as  OP.

 (i)  PA=OP2−OA2=392−152cm=36. cm.

(ii)  OP=AP2+OA2=202+152cm=25 cm.

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