関連ワード:  an obtuse angle triangle has one angle    an obtuse angle triangle has one dash angle    an obtuse angle triangle has one right angle    an obtuse angled triangle is one having one angle 90 degree    an obtuse angle triangle has at least one dash angle    a right angled triangle has one obtuse angle true or false    an obtuse angle triangle has one obtuse angle and two acute angle    an acute angle triangle is one having all three angles 90    what is an obtuse angle in a triangle  
結果 : an obtuse angle triangle has one angle