Which transformation or sequence of transformations would produce an image that is not congruent to its pre‐image?

A translation followed by a reflection
A rotation of 90 degrees about the origin
A dilation followed by a rotation
A translation of (x + 3, y + 4)

Can you me find the missing length. i attached an image.

Pls brainliest will be awarded if answer is correct

Myra took a picture of the sky one afternoon when two jet airplanes appeared to draw a pair of parallel lines with their vapor trails. the vapor trails from two other jets flying from another direction crossed over the parallel trails. she printed her picture and labeled the angles and lines. assume lines c and d are parallel and 2 measures 98°. which statements are true? check all that apply. 3 = 6 = 98° 3 = 14 = 98° 4 = 8 = 82° 4 = 12 = 82° 5 = 8 = 82°