What is the opening paragraph of the constitution called

The first sentence of the Constitution is called the preamble. We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessing of Liberty to ourselves and our Posterity.

I hope this helps you.

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx