関連ワード:  isosceles triangle with an obtuse angle    isosceles triangle with one obtuse angle    isosceles triangle with two obtuse angles    isosceles triangle with acute angles    isosceles triangle have obtuse angles    isosceles triangle with three acute angles    isosceles triangle with all acute angles    isosceles triangle with two acute angles    draw an isosceles triangle with one obtuse angle    can an isosceles triangle have an obtuse angle  
結果 : isosceles triangle with an obtuse angle