Point O is the center of a circle. The measure of arc RS on this circle is 100^circ. What is the measure, in degrees, of its associated central angle ROS?

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SAT Mathematics QUESTION #5477

Question 1

Point $O$ is the center of a circle. The measure of arc $RS$ on this circle is $100^\circ$. What is the measure, in degrees, of its associated central angle $ROS$?

$50^\circ$
$100^\circ$✔️
$200^\circ$
$360^\circ$

Correct Answer Explanation

The measure of a central angle is equal to the measure of its intercepted arc.

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