An angle of 90 degrees is called a right angle.

九十度的角叫做直角。

The vertical band is precision-machined from stainless steel.

直角边框由不锈钢精密打造而成。

They're carefully aligned edge to edge at a right angle.

它们呈直角严丝合缝对齐。

Oh, you know what? I need the angled screwdriver.

那个 我需要一个直角螺丝刀。

This, I'm assuming is a right angle.

这个是直角。

So this right over here is a right angle.

所以现在画的这个角就是一个直角。

Bertozzi called the field she created bioorthogonal chemistry—orthogonal means intersecting at right angles.

贝尔托齐称她创造的领域为生物正交化学——正交意味着以直角相交。

Take four identical right triangles with side lengths a and b and hypotenuse length c.

取四个全等的直角三角形，两边分别长 a 和 b，斜边长 c。

A right triangle is a two dimensional figure with three side, two of which are perpendicular.

直角三角形是具有三条边的二维图形，其中两条是垂直的。

The left should form at a right angle and the right knee should almost touch the floor.

左膝应呈直角，右膝应几。

May hurt a little bit, but try as much as possible to create a 90 degree angle.

可能有点痛尽可能形成一个直角。

The two lines on the left intersect each other at a right angle which is 90 degrees.

左边的两条线以90度的直角相交。

Root 2 simply is the hypotenuse of a right triangle

而 √2 只是两边长度为 1 的 直角三角形之斜边。

Ok, watch me: Just like this, Ok? 90 degree angle.

看着我，就像这样直角。

He understood right angles and clear instruction manuals. Assembly models and drawings. Things one could draw on paper.

他理解直角和清晰的产品说明，可以画到纸上的东西。

The most famous relation in geometry is the relation between the sides and the hypotenuse of a right triangle.

几何中最著名的关系是直角三角形的边和斜边之间的关系。

Take your thumb and your middle finger and create as much as possible a 90 degree angle.

让你的姆指和中指尽可能形成一个直角。

According to the converse of the Pythagorean theorem, that has to make a right triangle, and, therefore, a square corner.

根据毕达哥拉斯的逆定理，这就可以形成一个直角三角形，因此，便可形成直角。

I mean, we don't make it like a sharp right angle.

我的意思是，我们不会把它剪成一个尖锐的直角。

A " right angle" is this square here, it means 90 degrees.

一个“直角” 就是这里的这个正方形， 就是90度的意思。