Question

pls tell me this ans​

Answer 1

Answer:

chord BC=18cm

Seg OQperpendicular on BC

WE know that seg.also bisect equal part of chord

so

18/2=9

BQ=9cm=CQ

Answer 2

Answer:

Given

chord BC= 18

seg OQ perpendicular to chord BC

to find BQ.

BQ = 1/2× 18

BQ = 18 /2

BQ = 9cm