"Plane ABCD is the base, ABFE is in front, etc.
"Broken lines are at the figure's back, not visible from the front ... "
picture ¼ size
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The Braille text says:
"Introduction to the cube. "Plane ABCD is the base, ABFE is in front, etc. "Broken lines are at the figure's back, not visible from the front ... " |
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