### Home > GC > Chapter 10 > Lesson 10.1.5 > Problem10-53

10-53.

Multiple Choice: In the circle at right, $\overline{CD}$ is a diameter. If $AE=10$ , $CE=4$ , and $AB=16$ , what is the radius of the circle?

1. $15$

1. $16$

1. $18$

1. $19$

1. None of these

$ΔAED$ is similar to $ΔCEB$.

$\frac{CE}{AE} = \frac{BE}{DE}$

(e)