1. What angle is made by the two red lines drawn on the two sides of the cube, as shown in the illustration?
Answer...
If the ends of the two red lines at the bottom left and top left are connected by a third red line along the invisible left face of the cube, then since each of the red lines joins two opposite corners of same-sizes squares, those three lines form an equilateral triangle. Hence at each corner of that triangle, two red lines meet at 60 degrees.
With a protracter we mesured our self-drawn cube. The result was 45º
ReplyDeleteWith a protracter we mesured our self-drawn cube. The result was 65º
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ReplyDeleteWith a protracter we mesured our self-drawn cube. The result was 50º
ReplyDeleteHint - join the red lines then measure...
ReplyDeletenot the best hint rob we have done that
DeleteWith a protracter we mesured our self-drawn cube. The result was 60º
ReplyDelete