Step-by-step explanation:
pls can you give me the answer I want to be sure
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
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
22 I think it’s probably wrong but I tried
Answer:
71
so there's a right angle and 19° i added them and got 109°. and remember a triangle is 180° so i did 180-109