A cross section is the intersection of a an a

Asap (explain how you got it as well for brainliest)i tried 1: 2 and 2: 3 and they were wrong.picture of figure: in the figure below, the segment is parallel to one side of the triangle. the ratio of 12 to y is1: 21: 31: 42: 3

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36