Which statements are true about the unknown side length in this right triangle? Check all that apply.

√√13 m

བབ།།

6 m

The equation a²+(√13)2-

-62

I can be used to find the unknown length.

The equation (√13)+62-6² can be used to find the unknown length.

The equation

(√√13)²+62-c²

can be used to find the unknown length.