Question

I NEED THE ANSWER AS SOON AS POSSIBLE PLEASE!!​

Answer 1

Answer:

$\Large \boxed{\sf \ \ 4\sqrt{a^2+b^2} \ \ }$

Step-by-step explanation:

Hello,

You can use Pythagoras in the 4 right triangles.

For one triangle it comes $\sqrt{a^2+b^2}$.

Then for the polygon it gives $4\cdot \sqrt{a^2+b^2}$.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you