Regular Dodecagons (12-Gons) and Equilateral Triangles Can Form a Tiling

question 15

Multiple Choice

Regular dodecagons (12-gons) and equilateral triangles can form a tiling of the plane that has at every vertex:

• A) two dodecagons and two triangles.
• B) two dodecagons and one triangle.
• C) one dodecagon and two triangles.
• D) one dodecagon and three triangles.

---

Definitions:

McCarran-Walter Act

A 1952 law formally known as the Immigration and Nationality Act, which established the basic structure of American immigration law, including quotas and preferences based on skills and family connections but also allowed for the exclusion and deportation of immigrants based on political beliefs.

Truman's Veto

Refers to several significant vetoes by President Harry S. Truman, including those against bills he viewed as hostile to labor or civil rights, showcasing the use of presidential power to check legislative actions.

Fair Deal's Goal

The aim of President Harry S. Truman's set of proposals to Congress in 1949 for domestic policy reforms, including improved social security, housing, and civil rights.

Standard of Living

The level of wealth, comfort, material goods, and necessities available to a person, community, or society.