Name two things made with atoms​

Carbon and Hydrogen

Explanation:

Living things, for example, are mostly made from the atoms carbon, hydrogen, and oxygen. These are just three of over 100 chemical elements that scientists have discovered. Other elements include metals such as copper, tin, iron and gold, and gases like hydrogen and helium.

3775.2mm squared

Step-by-step explanation

You find the area of each side and add all of them together. You divide by 2 for every triangle, and the slant height is never used.