Step-by-step explanation:
Hope the above solution helps
Answer:
Because they are parrallel you already know that whatever the answer is, the slopes are the same
Answer:
To find the sum of interior angles in a polygon, we can use the formula:
where n is the number of sides.
Since this is pentagon (5 sides), then 
The missing angle would then be

Since angles on a straight line add up to 180, then

