Answer:
36cm
Step-by-step explanation:
A square has 4 equal sides so you can find the square root of 81 which is 9. Each side is 9cm, so just add the four sides and it gives you 36. Hope this helps^^
36 cm
The correct choices are the first, second, and fifth options.
Edge 2021
Hence
.
Inverse variation
y=40
I hope it's helps you
