What exactly are you looking for?
Answer:
a) centre angles are double the circumference
b) 60 degrees
c) 120 degrees
Step-by-step explanation:
for c) the opposite angles in a cyclic quadraleteral add to 180 so take 60 from 180 to get 120
Answer:
It will always be 0 because the rule is <em>anything</em> times 0 is 0
Answer: X would equal 7 so X=7