The measure of arc RT in the circle S is about 60 degrees.
A circle is the locus of a point such that the distance from its fixed point is always constant.
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From the diagram:
arc RT = 2 * ∠RUT(angle at circle center is twice angle at circumference)
arc RT = 2 * 30
arc RT = 60°
The measure of arc RT in the circle S is about 60 degrees.
Find out more on circle at: https://brainly.com/question/24375372