関連ワード:  can a scalene triangle have an obtuse angle    does a scalene triangle have an obtuse angle    can a scalene triangle have an acute angle    can a isosceles triangle have an obtuse angle    does a scalene triangle have an acute angle    does a scalene triangle always have an obtuse angle    can a scalene triangle have a right angle    can a scalene triangle have all acute angles    can a scalene triangle have three acute angles    can a scalene triangle have one right angle  
結果 : can a scalene triangle have an obtuse angle