三角sānjiǎotriangle; trigonometryHSK 7-9PronunciationsānjiǎoExample sentence在黑板上画一个等边三角。zài hēibǎn shàng huà yī gè děngbiān sānjiǎoDraw an equilateral triangle on the blackboard.Read and choose an answerOne fixed sampleExplore a sample