# Is the Tenshinhan's Shin Kikoho technique, a triangle or square?

When Tenshinhan prepares to launch the shin kikoho, he puts his hands in the form of a triangle.

However, the attack ends up in the form of a square according to the destroyed area.

Does anyone have a good explanation for this?

EDIT

Thanks for everyone, I've checked the manga chapters, and it seems that he puts his hands in a diamond shape, apparently, there was a mistake when making it into anime

• The second image sure looks like triangle to me. Aug 7, 2014 at 6:49
• @TendouKishi right side of Tian's hip you see the bottom right corner of the hole so you can visualize the edge that's under Tian, it's a perfect Rectange Aug 7, 2014 at 6:51
• Well, is there the after the technique image? I mean the resulting hole in the ground. It'd be much more clear if there is. Aug 7, 2014 at 7:54
• @Memor-X thanks, yes that's what I was talking about Aug 7, 2014 at 20:02

The attack leaves a square hole due to the way he holds his hands. When he fires the attack normally he places his hand in a diamond shape and zooms into his target. the attack then is shot and forms the square shape.

as you can see that his hands put together form more of a diamond shape and when he fires the attack it rotates and makes the square.

later in the series He changes the way his hands are placed and over laps the thumbs and make a triangle shape with is hands instead of the diamond shape.

it is stated on Ultra DragonBall wiki

Interestingly, this technique leaves a square hole in the ground, instead of a triangle.

Though he put his hand in the form of triangle, the hole is in square/rectangular form. The answer is quite scientific. A Reuleaux triangle can be rotated to create a square shape. This YouTube video and this site explain it in more detail.

Tenshinhan's hand shape is similar to the Reuleaux triangle. Due to its shape, while it rotates, its cutting edge cut the hole in a shape of square which is shown in the gif below.

• rather than only give a link, you should tell us what did they say and explain them. Aug 7, 2014 at 7:47
• @ShinobuOshino I posted anonymous edit with explanation. Before it'll get reviewed, see upload.wikimedia.org/wikipedia/commons/2/20/… Aug 7, 2014 at 8:30
• i think this much explanation will be enough. describing principle and how it works may make the answer very long. Aug 7, 2014 at 9:28
• What is the source for your quote? Aug 7, 2014 at 9:52
• i removed quote Aug 7, 2014 at 10:00