V vanilla3frostiing Guest Feb 24, 2009 #1 a nail, a hammer, a sheet of paper, a ruler, a protractor, and a pencil to determine the altitude of the sun. You can use the word perpendicular but not horizontal.
a nail, a hammer, a sheet of paper, a ruler, a protractor, and a pencil to determine the altitude of the sun. You can use the word perpendicular but not horizontal.
