関連ワード:  longest side of an obtuse triangle    longest side of an acute triangle    the longest side of an obtuse triangle measures 20cm    the longest side of an acute triangle measures 30 inches    the longest side of an isosceles obtuse triangle measures 20 centimeters    the longest side of an isosceles obtuse triangle    what is the longest side of an obtuse triangle called    how to find the longest side of an obtuse triangle    how to find the long side of an obtuse triangle    the longest side of an acute isosceles triangle is 8 centimeters