math and applied math : metallurgy > sally
Contents
No. 1
　　Greater than right angle (90 °) and less than the straight angle (180 °) angle.
Translated by Google
No. 2
　　Mathematical terms. Greater than the right angle but less than the boxer's corner.
Translated by Google
No. 3
　　大于直角（90°）小于平角（180°）的角。
No. 4
　　大于直角（90°）小于平角（180°）的角叫做钝角。
　　不少同学对“大于180°小于360°的角是什么角” “大于180°小于360°的角是否还为钝角” 存在不少疑问
　　解释： 大于90°小于180°的角叫做钝角
　　大于180°小于360°的角叫做优角
English Expression
  1. n.:  sally
French Expression
  1. n.  angle obtus