Question

Help @knov

Answer 1

i say c or D

Answer 2

its C

Answer 3

could u show me exactly how would it look like after 1/2 rotation

Answer 4

i need help on this

Answer 5

tip: after 1 rotation distance between B and B' is 0

Answer 6

orrrrr let me check if this is what it would look like

Answer 7

that's exactly what u need. show ur work.