Question

I completely forgot how to do this, so if you can answer and give an explanation, I’d really appreciate it!

Answer 1

C

Explanation:

Well to do this we can eliminate answers that seem unreasonable and just calculate the ones we think might be it

We know it can't be the first one or the second since its perimeter isn't 32

It could be the third one so we can check the perimeter

3+3+16+16=38

so it is the third one