Question

oc is perpendicular to ab. what is the length of ab? a. 13.4 units b. 3.35 units c. 6.7 units d. 20.1 units

Explanation:

Step1: Recall circle - chord property

A perpendicular from the center of a circle to a chord bisects the chord.

Step2: Identify given length

Given that $AC = 6.7$ units.

Step3: Calculate length of chord $AB$

Since $OC\perp AB$, $AB = 2\times AC$. So $AB=2\times6.7 = 13.4$ units.

Answer:

A. 13.4 units