Respuesta :

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 [tex]\frac{long}{short} =\frac{long}{short}[/tex] where each long and short form an angle.

So write:

[tex]\frac{12}{8} =\frac{y}{4}[/tex]

To solve, cross multiply numerator with denominator.

12(4) = 8(y)

48=8y

6=y