Question

Help 15 pts. Please answer asap

Answer 1

Answer:

The answer is D.

Step-by-step explanation:

Answer 2

Answer:

D. $4\sqrt{a^{2}+b^{2}}$

Step-by-step explanation:

We can see the shape can be cut into 4 right triangles.  We can use pythagoreans theorem to find the length of the hypotenuse.  

The distance from 0 to a represents one side, and the distance from 0 to b represents the other side.

So

$a^{2} +b^{2} =C^{2}$

(C represents the hypotenuse)

So the hypotenuse can be written as $\sqrt{a^{2} +b^{2} }$

Since four of these lines make up the perimeter,

the total perimeter will be $4\sqrt{a^{2}+b^{2}}$