The formula of density is mass / volume.
So, the volume is equal to the area of the cube by the total height, so the area of the cube is 3x3= 9, and this result multiplied by the height, 9x3 = 27.
Following the formula of density, we have 216 g / 27 cm^3, the result is 8 g/cm^3.
Hope you undestand my procedure XD
I think that it’s A, Perpendicular (correct me if I’m wrong)
Answer:
This is a question you should know in trig.
You should search up how to solve for simple trig functions
The cos of 60 degrees is 1/2 just because you asked