Answer:
Step-by-step explanation:
-4√2-8

Hope you could get an idea from here.
Doubt clarification- use comment section.
It’s D, y = 4.
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Answer:
Step-by-step explanation: letter B is the right answer
Since a cube has 6 sides, we can divide 294 by 6, so we have the area of one side. Since it is a cube, we can just square root that, and you get 7 cm.