Question

12. In Fig. 1, A ABC is circumscribing a circle, the length of BC is ​

Answer 1

Step-by-step explanation:

given= AR = 4cm

RB=4cm

AC = 11cm

to find :- BC

AR = AQ + QC

11= 4 + QC

QC = 7cm

OC= pc = 7cm ( equal tongents )

and RB = BP = 3c ( equal tongents )

BC = BP + PC

= 3 + 7

BC = 10 cm

the length of BC is 10 cm