In the triangle below, ZABC is a right angle. Given that BDI AC, which statement must be true? (Hint: Look at your notes about similar right triangles). B AB AC AB AD DC DC BD BD AB BC DB BC DC AD DB DC

In a right triangle, if the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments, the length of the altitude is the geometric mean of the lengths of the two segments.
According to this
[tex]\frac{AD}{DB}=\frac{DB}{DC}[/tex]Which is the fourth option.