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anonymous
 4 years ago
15. On the cube in the figure above, each of the following points is the same distance from
P as it is from Q
EXCEPT
(A) A (B) B (C) C (D) D (E) E
anonymous
 4 years ago
15. On the cube in the figure above, each of the following points is the same distance from P as it is from Q EXCEPT (A) A (B) B (C) C (D) D (E) E

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Here's a drawing of part of the diagram: dw:1345993986749:dw CQ and PQ are the same length because we are dealing with a cube, but since we don't know what the length is let's call it x. We want to see if the length of CP is also x, because if it isn't that would mean that it wasn't the same distance away from P as it is from Q. Let's call the length of CP y. Can you use Pythagoras' theorem to work out what y is in terms of x?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Have a go, tell me what you get.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0It is indeed, can you explain why?
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