Answer:
Legenth times width
Step-by-step explanation:
Answer:3
Step-by-step explanation:
Answer: x= 6, y= -2
Step-by-step explanation: hope this helps.
Knowing the interior angle sum formula is;
180x(n-2)
180x(n-2)=1260 (solve for n here)
180n-360=1260
180n=1260+360
180n=1620
n=1620/180
n=9
Therefore, this polygon has 9 sides.
Hope I helped :)