A quadrilateral PQRS is inscribed in a circle, as shown below:

A quadrilateral PQRS is inscribed in a circle. The measure of angle PQR is 80 degrees.

What is the measure of arc PQR?

260°
200°
100°
320°

Question

A quadrilateral PQRS is inscribed in a circle, as shown below:

A quadrilateral PQRS is inscribed in a circle. The measure of angle PQR is 80 degrees.

What is the measure of arc PQR?

 260°
 200°
 100°
 320°

triciaal · Answer

click on draw below and use the pencil to sketch it helps to "see" what is going on

triciaal · Answer

the angles in a circle = 360
angles in a quadrilateral = 360
angles in a triangle = 180 
angles on a straight line = 180

triciaal · Answer

the arc length  is the ratio of the angle formed with the circumference

anonymous · Answer

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