Triangle def is congruent to d'ef' by the sss theorem. which single rigid transformation is required to map def onto d'ef'? dilation reflection rotation translation

the answer is rotation :/

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,