Answer:
The answer is c
Step-by-step explanation:
My original answer got deleted i dont know the reason.
Where is the question. though
Answer:
the first one
Step-by-step explanation:
X^2 = 20(40)
x^2 = 800
x = 20<span>√2
y^2 = 20(60)
y^2 = 1200
y = </span>20√3
z^2 = 40(60)
z^2 = 2400
z = 20√6