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  • So if you're like me, you probably

  • don't carry around a protractor everywhere you go.

  • And even if you do, sometimes you

  • want to have only the angle you want.

  • Because you needed a whole bunch without all those other degrees

  • getting in the way.

  • This is the need that the angle-a-tron fulfills.

  • A protractor is kind of like a 180-degree angle-a-tron.

  • It's great at 180 degrees.

  • You can make your own 180-degree angle-a-tron super easily

  • from any piece of paper.

  • Even if your paper doesn't have an edge, you can just fold it.

  • And tada, angle-a-tron.

  • One extremely useful angle-a-tron

  • is the 90-degree angle-a-tron.

  • Many pieces of paper come pre-equipped with one of these.

  • But if they don't, you can get one

  • by folding a 180-degree angle-a-tron in half.

  • Now you can draw all sorts of rectangly things

  • and perpendicularities.

  • Following the fold-stuff-in-half method,

  • you can get a 45-degree angle-a-tron pretty easily.

  • Or a 22.5 degrees.

  • Or 11.25, and so on.

  • And you get these weird looking numbers.

  • But that's only because we started with something

  • arbitrary, like 360 degrees.

  • When really the numbers we're looking at

  • are 1/2, 1/4, 1/8, 1/16, you know 1/2 to the n.

  • It's not hard to fold paper into thirds either.

  • Might take a little evening out, then bam, 180 degrees

  • tuns into 60 degrees.

  • Good for making equilateral triangles.

  • Or put two together to get 120 degrees.

  • A very common and useful angle for when, say, bubbles meet.

  • If you're drawing bubbles or honeycombs or something.

  • Then you can start adding them together.

  • 135 degrees is easy.

  • 90 degrees plus 45 degrees.

  • Now, you can make puzzles for yourself.

  • Say you make a 60-degree angle-a-tron

  • and a 135-degree angle-a-tron.

  • How do you make an angle-a-tron that completes the circle?

  • Or if a friend gives you an angle-a-tron,

  • can you make the complementary or supplementary-- I forget

  • which is which-- angle-a-tron?

  • And then, let me know if this is going a little too far.

  • Maybe you can put an angle-a-tron

  • on your angle-a-tron.

  • And now I have a 60 degrees and another 60 degrees,

  • which comes over here to make another 60 degrees.

  • And I've got an equilateral triangle polygon-a-tron.

  • And just in case you thought that wasn't going too far,

  • why not make that into a polyhedron-a-tron?

So if you're like me, you probably

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B1 中級

アングルアイトロン (Angle-a-trons)

  • 3 0
    林宜悉 に公開 2021 年 01 月 14 日
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