I believe the answer would be A correct me if I’m wrong.
Answer: If the plane is perpendicular to the line, the normal vector of the plane is equal to the direction vector of the line
Step-by-step explanation:
Convert 8cm and 12cm to 80mm and 120mm. A=(width)(length) so A=(80)(120) which equals 960mm^2.
The answer is C. n>52
hope this helps :D
The exact form of this would be 5squareroot of 2 or the decimal 7.0711