Which of the following methods is used in conducting a simple farm lay-out survey?

A simple farm layout survey involves the measurement and mapping out of a farm into different areas or sections for proper planning and management. One method used in conducting this survey is the 3:4:5 method, also known as the Pythagorean triangle method. This involves using a tape measure to mark out a 3-meter length along one side of the area to be surveyed, then marking out a 4-meter length along the adjacent side, and finally measuring the diagonal between these two points to get a length of 5 meters. This forms a right-angled triangle with sides of 3, 4, and 5 meters, which can be used as a reference point for the layout of the farm. This method is based on the Pythagorean theorem, which states that the square of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the other two sides.