Answer:
6
Step-by-step explanation:
Chords within a circle are proportional. Proportional means that they form equal ratios. To solve for y, set up a proportion.
The ratios we will create will be
where each long and short form an angle.
So write:

To solve, cross multiply numerator with denominator.
12(4) = 8(y)
48=8y
6=y
Answer:
yes because it says all angles are the same
Answer:
12
Step-by-step explanation:
The sum of the first n natural numbers and 0=
n*(n+1)/2
Yes just do that.................... ....m