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OpenStudy (anonymous):
A quadrilateral PQRS is inscribed in a circle, as shown below. What is the measure of arc PQR? a. 260° b. 200° c. 100° d. 320°
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OpenStudy (anonymous):
OpenStudy (anonymous):
is it a?
OpenStudy (anonymous):
opposite angles in cyclic quad is 180 degree so 180-80 would give you 100 hence `c`
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