Question

in figure the circles A and B touch each other at point E. line l is a common tangent at point CAnd D find the length of sag CD if radii is 4 and 6 cm respectively​

Answer 1

Answer:

Step-by-step explanation:

Radii 4 cm and 6 cm.

AB =6+4=10 cm

∠Y=90  

o

 

then ,

BF=6−4=2cm

In △BYA

AY  

2

=AB  

2

−BY  

2

 

=10  

2

−2  

2

 

AY=  

100−4

​  

 

AY=  

96

​  

 

AY=4  

6

​  

 

AY∣∣CD

 

Hence,

CD=4  root 6

​