In the diаgrаm belоw, аnd . If and , what is the measure оf line segment ? Twо triangles, STU and VUT share a common base TU at the bottom. Triangle STU extends upward to vertex S at the top left, while triangle VUT extends upward to vertex V at the top right. The two triangles intersect at an interior point Z, where segments SU and TV cross. This intersection divides the figure into three smaller triangular regions. All line segments are drawn in black.