An angle of 90 degrees is called a right angle.

九十度叫做直。

This, I'm assuming is a right angle.

是直。

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

它们呈直严丝合缝地对齐。

The vertical band is precision-machined from stainless steel.

直边框由不锈钢精密打造而成。

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

那 我需要一直螺丝刀。

So this right over here is a right angle.

所以现在画就是一直。

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

我，就像样直。

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

左膝应呈直，右膝应几乎触地。

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直。

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

左边两条线以90度直相交。

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

贝尔托齐称她创造领域为生物正交化学——正交意味以直相交。

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

他理解直和清晰产品说明，可以画到纸上东西。

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

直三形是具有三条边二维图形，其中两条是垂直。

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

取四全等直三形，两边分别长 a 和 b，斜边长 c。

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

让你姆指和中指尽可能形成一直。

Root 2 simply is the hypotenuse of a right triangle

而 √2 只是两边长度为 1 直三形之斜边。

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

几何中最著名关系是直三形边和斜边之间关系。

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

根据毕达哥拉斯逆定理，就可以形成一直三形，因此，便可形成直。

This is a right angle, so this is also 30.

是直， 所以也是 30。

If it's not a right angle, it is a wrong angle.

如果不是直, 就是斜。