Question

What is the missing side length of the polygon if its perimeter is one hundred forty feet?

seventeen feet

twenty feet

twenty-three feet

twenty-nine feet

Answer 1

@Venny

Answer 2

Well the perimeter is all of the sides added together, so we have
\(\Large\ 140=18+6+17+15+40+21\)
Add the right side together, then subtract that from 140

Answer 3

17

Answer 4

\(\large\ 140=117\)
140-117=23