Question

One side of a rectangle has length a.

Another side has length b. How can you
express the perimeter of the rectangle as a
polynomial?

Answer 1

2a + 2b

Explanation:

Since it's a rectangle, there are two sides with the length "a," and two sides with the length "b."

Let's say a = 4, and b = 8

2(4) + 2(8)

8 + 16 = 24

We can prove this is correct, by adding 4 + 4 + 8 + 8 together, since you're looking for the perimeter

I hope this helped :)