Question

Pleaseee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!

Answer 1

9

Explanation:

size of each interior angle can be represented by:
`140^(o) = 180^(o)`•
`((n-2))/(n)`

solve for n:

`140^(o) = 180^(o)`•
`((n-2))/(n)` multiply both sides by n

140ºn = 180º(n - 2) distribute 180º to (n - 2)

140ºn = 180ºn - 360º subtract 180ºn from both sides

-40ºn = -360 divide both sides by -40º

n = 9

Answer 2

The Answer should be 9

140-180=40

360÷40=9