Preparation. 1. Combine first 6 ingredients in a large bowl, stirring with a whisk. Add watermelon and next 5 ingredients (through tomatoes); toss gently. Cover and refrigerate 2 hours or until thoroughly chilled. Sprinkle with goat cheese just before serving.
Numbers (of objects) that can be arranged into a square array are called square numbers. Not a square number: Square arrays must be full if we are to count the number as a square number. Here are 12 pennies arranged in a square, but not a full square array. The number 12 is not a square number.
Triangular number. A triangular number or triangle number counts the objects that can form an equilateral triangle, as in the diagram on the right. The nth triangular number is the number of dots composing a triangle with n dots on a side, and is equal to the sum of the n natural numbers from 1 to n.