Question

line PA is a tangent at point a line PBC is a secant Ap=15 BP=10 find BC​

Answer 1

Answer:

qwertyuiopasdfghjklzxcvbnm

Answer 2

Answer:

Step-by-step explanation:

Ray PA is a tangent and PBC is a secant.

∴PA  

2

=PB×PC … [Tangent secant property]  

Given PA=15,PB=10

∴(15)  

2

=10×PC  

⇒10PC=225

⇒PC=  

10

225

​  

 

∴PC=22.5  

From the figure, PB+BC=PC

∴PB+BC=22.5

⇒10+BC=22.5

⇒BC=22.5−10

∴BC=12.5