The points of intersection of xy \equal{} 12 and x^2 \plus{} y^2 \equal{} 25 are joined in succession. The resulting figure is:
<spanclass=′latex−bold′>(A)</span>a straight line<spanclass=′latex−bold′>(B)</span>an equilateral triangle<spanclass=′latex−bold′>(C)</span>a parallelogram<spanclass=′latex−bold′>(D)</span>a rectangle<spanclass=′latex−bold′>(E)</span>a square