Can the area of a hexagon be calculated?
A hexagon is a six-sided 2D shape.
Can the area of a cube be calculated?
A cube is a six-faced 3D solid.
No. (The surface area can be calculated, but that's not what we're talking about here.)
Why is grams2 not a valid unit for area?
What are grams used to measure?
Grams are units of mass, not distance.
From the list in3, kg2, cm2, mL2, units, light-years2, min2, ft, yd2, and miles2, which are valid units for area?
Consider the unit itself and its exponent.
Only cm2, light-years2, yd2, and miles2 are valid for area.
From the list ft2, sec, units2, in, cm3, km-1, mg2, mm2, lb2, oz2, and meters, which are valid units for area?
What does the unit itself measure? What is the exponent on the unit?
Only ft2, units2, and mm2 are valid for area.
Make it rain.