You multiply 6ftx20ft then add 1 to it to get your answer
You can't change the sum by changing the grouping. Any way you cut it, you will always get 226, as you only have addition operations, and the commutative property [a+(b+c)=(a+b)+c] means that the sum will always be the same.
They would both be on a different axis.
<span>subtract 2 from the number of sides, and multiply the difference by 180</span>
