问题：
In the figure below, line n is parallel to line m,
答案：
正确答案: The answer is 90°. You are given that the angle formed by the intersection of line p and line n is a right angle, which is 90°. Since line o is parallel to line p, it will make the same angles as any line crossing line p. The same rule applies for line m and line n. Therefore, all of the angles on the diagram are equal to 90°.