You can create an equation since both have the same value of perimeter.
Answer:
AB = 13 units
Step-by-step explanation:
Calculate the distance d using the distance formula
d = 
with (x₁, y₁ ) = B(- 5, 12) and (x₂, y₂ ) = A (0, 0)
d = 
= 
= 
= 
= 13
Answer: 63 degrees (second choice)
The two angles shown are corresponding angles. They are both on the bottom side of their adjacent parallel line, and at the same time, they are also on the left side of the transversal line. This is why they are corresponding angles.
Corresponding angles are congruent if you have a set of parallel lines like the diagram shows. So that's why a = 63.