A) an equilateral triangle A) an equilateral triangleA) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangle A) an equilateral triangleA) an equilateral triangle A) an equilateral triangleA) an equilateral triangle A) an equilateral triangleA) an equilateral triangleA) an equilateral triangle A) an equilateral triangleA) an equilateral triangle A) an equilateral triangleA) an equilateral triangle A) an equilateral triangle A) an equilateral triangleA) an equilateral triangle <span>A) an equilateral triangle</span>
