Question

REFER TO DIAGRAM

Answer 1

there is an attachment

Answer 2

OB is a radius

Answer 3

BD-OD gives OB which is radius......so lenghth of radius is 32-7=25

Answer 4

now OA and and OC =R
and we =know od.....use PYTH to figure out AD
AD=DC

so lenght AC = 2AD

Answer 5

to find AC use AC=2AD
AD is the third side of a right angled tringle
you know the other two sides