Use-perpendicular-bisectors-to-chords-

/in /by

Find the value of x.

Circle O has radius x. A horizontal chord has length 4. A vertical line segment from O to this chord forms a right angle with the chord and has length 5.7.
O 4 5.7 x

x ≈

(Do not round until the final answer. Then round to the nearest tenth as needed.)