Answer:
SAS
Step-by-step explanation:
Vertical angles are congruent, and the vertical angle is between the 2 sides.
Answer:

Step-by-step explanation:
Note: When you divide exponents with the same constant, the exponent will be subtracted, and vice-versa, when you multiply exponents with the same constant, the exponents will be added.

Angles 1 and 8 are created by line t intersecting with line m.
Line t is called a transversal line, because it intersects 2 parallel lines.
t divides the straight angle formed by m alone, forming the linear pair of angles (1) and (8), whose sum is 180 °, that is they are supplementary.
Answer: (1) and (8) are linear pairs
None because 15 is smaller than 16 and 16 is the biggest