Find the length of the chord |AB| in the diagram shown above.
The correct answer is A. 4.2 cm
The length of the chord can be calculated using the formula `Length of chord = 2r * sin(θ/2)`, where `r` is the radius of the circle and `θ` is the angle subtended by the chord at the center of the circle.
Substituting the given values of `r = 3` and `θ = 68`, we get `Length of chord = 2 * 3 * sin(68/2) = 6 * sin(34) = 6 * 0.559 = 3.354 cm`.
Rounding this value to one decimal place, we get that the length of the chord is approximately `3.4 cm.
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