Answer:
The equation is p=34a+12, and a=7
Step-by-step explanation:
Perimeter is all of the sides added together
p=12a+6a+8+6a+8+10a-4
Combine like-terms
p=34a+12
Solve for a by making p equal to 250
250=34a+12
Subtract 12 from both sides
238=34a
Divide both sides by 34
7=a
Answer: -2
(-5)(-1)x=(10)(-1)
5x = -10
x = -2
we have different side lengths and thus different angles anyhow, meaning is an Scalene triangle.
1,3,5 because they are all negatives less than -3