Hemisphere is the exact half of a sphere. When a plane cuts across a sphere at its center, it forms two hemispheres. Surface area of a hemisphere of radius r is given by 2pr2. Volume of a hemisphere of radius r is given by 2/3pr3.
Falling dreams also often reflect a sense of failure or inferiority in some circumstance or situation. It may be the fear of failing in your job/school, loss of status, or failure in love. You feel shameful and a lost sense of self-esteem You are unable to keep up with the status quo and feel that you don't measure up.
To dream that you have been betrayed represents your suspicions about a particular person, relationship or situation. This dream often occurs when you are having feelings of insecurity and are faced with major commitments in your life at the same time. To dream that someone has betrayed you indicates self-pity.