関連ワード:  does an isosceles triangle have an obtuse angle    can an isosceles triangle have an obtuse angle    does an isosceles triangle have an acute angle    does an isosceles triangle always have an obtuse angle    can an isosceles triangle have an acute angle    does an isosceles triangle have two obtuse angles    does an isosceles triangle have one obtuse angle    does an isosceles triangle have right angles    does an isosceles triangle have 3 acute angles    can an isosceles triangle have two obtuse angles  
結果 : does an isosceles triangle have an obtuse angle