you need
  • - line;
  • - compasses;
  • - drawing a triangle with a right angle.
Guide
1
to determine the rectangular coordinates of a point on a plane to drop a perpendicular from this point on the coordinate axes.Usually a coordinate axis and designated as follows: • x-axis is horizontal, directed to the right, referred to as OX; • the y-axis is vertical, pointing upwards, is designated as OY.Rasstoyaniya from the points of intersection perpendicular to the origin point are the coordinates on the plane.The point of intersection of the perpendicular to the x-axis is called the abscissa and is denoted by x, and the point of intersection of the perpendicular to the ax
is OY is called the ordinate, and is usually denoted by y.
2
To determine the rectangular coordinates point in space, swipe ne perpendiculars three axes.Typically, these axes have the following location and designation: • x-axis is perpendicular to the plane of the figure, is directed toward the observer, and is referred to as OX; • the y-axis is vertical, pointing upwards, and is referred to as OY; • axis applicate is positioned vertically, pointing upwards, and is referred to as OZ.To determine the appropriate need to coordinate as in the first paragraph, to hold each of the coordinate axes perpendicular.Then measure the distance from the intersection point of the perpendicular to the corresponding axis from the origin.
3
To determine rectangular coordinates on a topographic map to: • Determine the square, which is the point; • on the south side of the square and make note of the total value of the abscissa (x) in kilometers; • compass, ruleror koordinatomerom measure perpendicular distance from a point on the map to the coordinate of the line and add it to the abscissa (distance in meters) .Vychislenie ordinates of points on a topographic map made similarly - only instead of the south side of the square is used west side.