First one the answer is A; Alexander needs 70 ft
\left[x _{1}\right] = \left[ \frac{2}{3}+\left( \frac{-1}{3}\,i \right) \,\sqrt{2}\right][x1]=[32+(3−1i)√2] totally answer
Answer:
40 Squared units
Step-by-step explanation:

I would say its A but I'm not 100%