verb🔗Share对向，正对，对应。 To use an angle to delimit (mark off, enclose) part of a straight or curved line, for example an arc or the opposite side of a triangle."The 60-degree angle in my slice of pizza subtends a nice, cheesy arc of crust. "我那块披萨里60度的角正对着一段美味的奶酪馅饼皮弧。mathspacetechnicalChat with AIVocabulary GamePractice Reading
verb🔗Share正对，对向，跨越 (also mathematics) To extend or stretch opposite something; to be part of a straight or curved line that is opposite to and delimits an angle."A hypotenuse subtends the right angle of a right triangle."一条直角三角形的斜边正对着它的直角.mathtechnicalChat with AIVocabulary GamePractice Reading
verb🔗Share正对，对向 To form the central angle of a circle underneath an arc"The points A and B on the circumference form the arc AB, which subtends the central angle θ."圆周上的A点和B点构成了弧AB，弧AB正对着圆心角θ。mathChat with AIVocabulary GamePractice Reading
