The circumcenter<span> of a </span>triangle<span> is the point where the perpendicular bisectors of the sides intersect. from the graph, we can see that the perpendicular bisector of BC is the y axis, x=0, the perpendicular bisector of AC is y=-3, so the circumcenter is (0,-3)</span>
To calculate the volume of a prism you multiply the area of it's cross section by the length
Therefore
5 x 3= 15
(Area of the rectangle)
15x8= 120
(Volume of prism)
