一个直角三角形有六部分组成，即三条边和三个角。

A triangle is composed of six parts, three sides and three angles.

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有三只蚂蚁，在三角形的三个角落，同时朝着另一个角随机出发了，什么情况下他们不会撞上？

There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they don't collide?

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三角形有三条边和三个角。

The triangle has 3 sides and 3 angles.

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So again, if we think about that shape of that carbon atom, it's going to be trigonal planar, 120° it's going to have bond angles of 120 degrees, because we have this set up of having three hybrid orbitals.

如果我们考虑碳原子的形状，它是平面三角形，键角是，因为我们有这三个杂化轨道。

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