180 is the answer . Just multiply both numbers.
Answer:
The transformation is rigid because the corresponding side lengths and angles are congruent.
Step-by-step explanation:
Since we have congruent triangles (not similar triangles), they will have to have the same length and angles throughout your transformation. Therefore, our answer is the 1st Option.
C I need to put 20 letters so yea the answer is C
About 145 I gonna guess I dont know if that's right