Inside a cube
This task is about finding right angles on a cube.
Question
1
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Many triangles can be drawn by connecting any 3 corners of a cube,
for example, the corners A, E, and G are connected to make triangle AEG.
For each triangle below circle whether or not it is a right-angled triangle.
Many triangles can be drawn by connecting any 3 corners of a cube,
for example, the corners A, E, and G are connected to make triangle AEG.
For each triangle below circle whether or not it is a right-angled triangle.
Triangle
Right-angled triangle?
AEG
Yes
No
Yes
No
AEH
Yes
No
Yes
No
ABC
Yes
No
Yes
No
ACH
Yes
No
Yes
No
ABH
Yes
No
Yes
No
BDE
Yes
No
Yes
No
BDF
Yes
No
Yes
No
DEG
Yes
No
Yes
No
BDG
Yes
No
Yes
No
BFG
Yes
No
Yes
No
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