It passes through the N atom and through the center of the equilateral triangle.它通过N原子及三个H原子组成的等边三角形的中心.Use your protractor to construct an equilateral triangle.用量角器作一个等边三角形。An equilateral triangle cannot be dissected in...
The angles are equal, for ABC is equilateral.三角相等, 因为三角形ABC是等边三角形.An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles.等边三角形不能分成有限多个不全等的等边三角形.It passes through the N atom and t...