Answer: Right to a trial by jury.
Explanation: The first amendment is "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances". So, the first amendment does protect the right to practice any religion, it does protect the right of a peaceful protest, it does protect the right of individuals but <em>it does not protect the right to trial by jury</em>.
The shape would be a trapezoid, because trapezoids always have two sets of equivalent angles, while others don't. Like squares and rectangles have all 90 degree angles.
Louis Pasteur contributed to society by discovering vaccination and microbial fermentation.