Quadrilateral opqr is inscribed in circle n ,as shown below. what is the measure of

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane