Question

two distinct lines, (l) and (m), are each perpendicular to the same line (n). 9. what is the measure of the angle where line (m) meets line (n)? 10. what level of mastery do you think you have on the content in this formative?

Explanation:

Step1: Recall perpendicular - angle definition

By definition, if a line is perpendicular to another line, the angle between them is 90 degrees.

Step2: Apply to line m and n

Since line m is perpendicular to line n, the measure of the angle where line m meets line n is 90 degrees.

Answer:

90 degrees