**Co‐ordinate systems used in CAD **

**Using Absolute Coordinate System :**

Draw a line from point (5,5) to Point (10,10)

Command: LINE

From a point: 5,5 (Select the point by mouse or enter the coordinates by keyboard).

To point : 10,10

To point : (Press Enter).

**Fig.: To draw a line using an Absolute Coordinate System**

**Using Relative Coordinate System :**

** **Draw a line from point (2,2) to point 5 units on the *x*‐axis and 8 units on the *y*‐axis relative to first

** **coordinate Command : LINE From point : 2, 2 To point : @ 5,8

** **To point : (Press Enter)

**Fig.: To draw a line using the Relative Coordinate System**

**Using Polar Coordinates :**

** **Draw a line from point (1, 2) to a length of 6 units of 90 degree

** **Command : LINE From point : 1,2 To point : @6 90

** **To point : (Press Enter)

**Fig.: To draw a line using the Polar Coordinate System**

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