Aim:-to understand map and it surface area.

Requirement :- tripod ,razing drawing proper,pencil,scale,pin,meter tape, scale,plumb,tube
Compass , steel scale, alidade scale.

Procedure :- to remove a map of a place and went   to the middle point of the place and set
Up  the  tripod and fixed the plain table on the tripod .then placed a proper on the plain table
then  pinched a pin at the center of proper and the four side of paper .then placed  a alidade
Scale on the paper , and a razing rod then mark the point where razing rod can be seen
Through alidade scale .then marked the line on the paper .do some to all four side of the
area .then by surface area formula find the surface  of the area .

Observation :- point on the paper should marked properly.