These lines are called isohyets.
A line connecting points on a map that receive equal amounts of rainfall is called an isohyetal line. It helps to visualize and understand the distribution of rainfall across a geographical area. Each point on the line represents the same amount of precipitation.
Every meridian of longitude connects the same two points . . . the north and south poles.
The Equator
Meteorology. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.(D)to connect points of equal air pressure on a weather map
Structural material to reach higher points and receive more sunlightStructural adaptation
The shortest route between two points on the surface of a planet, when routes are limited to the planet's surface, is the arc of the great circle that connects the two points. The shortest route between two points anywhere, without regard to intervening matter or energy preventing the route from being followed, is always the line connecting the two points.
Because rainfall is very variable and localized, it is not generally displayed as a line on any given map. The usual depiction is by color code, which refers to areas of a similar amounts of rainfall expressed in millimeters.
A chord is a line which connects two points which lie on a circle.
a line segment
It is an Isoline
an origin
A line connects two points. In your answer you would put a straight line on top of the answer.
Per the News 8 Austin website (www.news8austin), the current totals as of 9/12/07 are: Camp Mabry -- 43.65 ABIA -- 42.06 Average Rainfall in Austin is normally just over 33in for the year, so all points are far above normal.
2000 points only.
property line
a meridian
a chord
line segment