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.
Chat with our AI personalities
But it's not an equation because there is no equal sign and no points are given.
A spherical surface, with its center at the given point, and its radius equal to the given distance.
That will depend on the 3rd coordinate which has not been given
circle
A convex decagon is one in which no angle is a reflex angle.Another definition is that given any two points inside the decagon, the straight line joining the two points must lie wholly inside the decagon.