The length of the chord AC in the circle is 24 units.
What are Chords?
Chords are line segment joining any two sides of a circumference of a circle.
The radius of a circle is half of diameter of the circle.
Therefore, a radius or diameter that is perpendicular to a chord divides the chord into two equal parts and vice versa.
Hence, the radius that runs through M is perpendicular to the chord AC. Therefore, the chord AC is divided into two halves namely AM and MC.
Hence,
AC = AM + MC
AC = 12 + 12
AC = 24 units
learn more on chords here: brainly.com/question/6563602
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