関連ワード:  area of equilateral triangle having altitude a is    the area of equilateral triangle having altitude a unit is    area of equilateral triangle having height 12 cm is    the area of equilateral triangle with altitude p is    area of equilateral triangle with altitude 2 3 cm is    area of equilateral triangle with altitude 2 root 3 cm is    area of equilateral triangle with altitude  
結果 : area of equilateral triangle having altitude a is