The content must be found as before directed.

755

380

60400

226,5

2)286900

1,43450

4

1,73800

40

29,52000

A R P

Ans. 1 1 29

To furvey a Field which has four fides.

Draw a rough sketch of the Field, and a diagonal across it. Note down the length of each side, and the diagonal thus:

On the diagonal AB, draw the two triangles ABC, and ABD, and measure a perpendicular to each as in the last example.

C

Any other Field may be furveyed in the fame manner, by measuring as many diagonals as will divide it into triangles.

Required the Plan and Content of a Field, from the following fketch.

Draw a Plan, and find the Content of the fol