First we have to see the name of similar triangles. And here triangles, CBA and FED are similar . Now we need to use the property of similar triangle, which is
Corresponding sides of similar triangles are in same proportion. Therefore in triangle FED, 12 is the measurement of side opposite to angle with measurement 28 . So in triangle CBA, side opposite to angle of measurement 28 is of length 8 .
So the ratio is
[tex] \frac{8}{12} [/tex]
