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Mathematics 14 Online
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°

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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