How to solve this cube coordinate problem?

Question

Geometry

Answer 1

2 is solved as a right triangle A,D1,F: [D1,F] = SQRT(SQRT(8^2+8^2)^2+4^2)=SQRT(64+64+16)=SQRT(128+ 16)=SQRT(138+6)=SQRT(144)=
12 0.8]
M[(8*2)/3-4,(4*2)/3.8-(8*2)/3]
in my mind it all counts