Answer:
144
Step-by-step explanation:
Sum of interior angles:
180(n-2)
180(10-2)
1440
Measure of each interior angle:
1440/10=144
x=30/7 or decimal x=4.28571
In 1 ways they may be arranged the line
the answer is D
I don't know how to explain it very well but the line starts at 2 then ends at 8