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The figure below is the figure of a rectangular paper folded up. Given the angle 1 = 30 degrees, how many degrees is the angle 2?
After folding a rectangular piece of paper, the figure shows that the angle 1 is 66 degrees, and how much is the angle 2
fast
You should provide some pictures. I've made one at will. Please refer to it
Suppose as shown in the figure: angle 1 = 66 degrees, because angle 2 is equal to the left corner (the one not marked), you can fold it with rectangular paper;
&In this way: double angle 2 + angle 1 = 180 degrees, angle 2 = 57 degrees
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