3.4. Properties of Perpendicular Lines http://www.ck12.org
Any horizon over an ocean is horizontal, which has a slope of zero, or no slope. There is no steepness, so no incline
or decline. The complete opposite of Half Dome. Actually, if Half Dome was placed on top of an ocean or flat
ground, the two would be perpendicular!
Review Questions
Find the measure of^6 1 for each problem below.