Can someone help me with this. (find the missing length. The triangles in each paor are similar

With number 11 ( show how you got the answer)

Yo need asap pls ! markin da brainiest too !

First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement in